It’s hard to imagine a modern craftsman without a screwdriver - a tool that speeds up and facilitates the process of tightening self-tapping screws, screws and nuts. Try doing this job at least once with a regular screwdriver and you will immediately feel the difference.
Modern cordless screwdrivers can rightfully be called universal installation tools.
In addition to installing fasteners, they can drill different materials, beginning with soft plastic and ending with solid metal.
Every man dreams of acquiring such a reliable assistant, but when choosing a screwdriver, difficulties often arise. Most often they are associated with an incorrect assessment of the main and secondary characteristics of the instrument.
Let's take a look at the types of cordless screwdrivers offered on the market and take a detailed look at their technical parameters and configuration.
Selecting a screwdriver. What should you pay attention to?
All cordless screwdrivers have several basic technical characteristics:
- Battery type;
- Maximum torque;
- Chuck rotation speed;
- Cartridge type;
- Additional functions.
Choosing the right screwdriver for your home or professional use, requires careful study of each of these options.
Battery type
The battery life of the screwdriver and other operating capabilities directly depend on it. When purchasing this tool, be sure to pay attention to the type, voltage and capacity of the battery.
There are three types batteries for screwdrivers:
- Nickel-cadmium (Ni-Cd);
- Nickel metal hydride (Ni-MH);
- Lithium-ion (Li ion).
Nickel-cadmium batteries are most often used to complete household screwdrivers. They are quite reliable, inexpensive and energy-intensive. At correct use Ni-Cd batteries can withstand a record number of charge and discharge cycles (up to 1000). They have the longest shelf life among all types of batteries (up to 5 years).
The disadvantages of such batteries include their rather large dimensions and weight. Another unpleasant moment is the “memory effect”. It is expressed in the fact that when the battery is not fully charged or discharged, it loses its capacity. Besides, this type The battery has a high self-discharge (in 1 month of inactivity it loses up to 20% of its charge).
Now let's look at Ni-MH batteries and compare them with nickel-cadmium batteries. Their undoubted advantages are lower weight, high energy intensity (30% higher than nickel-cadmium) and resistance to impact.
Disadvantages - the same “memory effect”, a relatively small number of charge and discharge cycles (400-500), long charging time (up to 3 hours) and high self-discharge (up to 30% per month). These batteries cannot withstand low temperatures. You cannot use a screwdriver with a Ni-MH battery outdoors in winter.
When thinking about how to choose a cordless screwdriver, we note that the most modern lithium-ion batteries also have their pros and cons.
Let's list their advantages:
- low weight and size;
- specific capacitance is two times higher than that of Ni-Cd;
- no memory effect;
- a large number of charge-discharge cycles (up to 700);
- low self-discharge: (3-6% per month);
- ease of maintenance (do not require strict adherence to charge and discharge modes);
- fast charging (on average 30-40 minutes).
They also have disadvantages and they are quite serious:
- Do not work at sub-zero temperatures;
- Not restored;
- Low life expectancy (maximum 2 years). Moreover, the age of the battery is not counted from the moment of use, but from the date of its production (therefore, buy only “fresh” ones).
- Explosion and fire hazards;
- A complete discharge disables the battery (an attempt to recharge it may lead to an explosion);
- Sensitivity to overheating and shock;
- High price.
Another important point to remember– storage of a cordless screwdriver. Nickel-cadmium batteries can be stored when discharged. Nickel metal hydride, on the contrary, before long-term storage(several months) needs to be fully charged.
A separate thing needs to be said about lithium-ion batteries: they don’t care whether you store them charged or discharged. However, remember that they get old quite quickly. Therefore, buy a tool with such power sources not for one-time work, but for intensive use. Already after 1 year lithium battery will lose about 30% of its original capacity and will have to be thrown away after 2 years.
An important parameter is the battery capacity, measured in ampere-hours.. It determines how long you can use the tool without stopping to recharge. For a household screwdriver, an acceptable value is a capacity of 1.2 to 2.4 A/h.
You will not find electrical power as such in the description of the tool. This is indirectly indicated by battery voltage. The higher it is, the more power the screwdriver will produce during operation. For household models, which are rarely used for drilling hard materials, the optimal voltage will be in the range of 9-14 Volts.
It’s not for nothing that we paid so much attention to batteries. This is the most expensive part of the screwdriver, the cost of which reaches 50-60% of the total price of the tool.
Torque
The force with which the screwdriver is able to screw fasteners and drill hard materials depends on this parameter. It is measured in newton meters. For models in the household line, a torque of 12 to 20 N/m is quite sufficient. A professional tool can develop a force of up to 100 N/m.
Rotational speed
This parameter is important when using a screwdriver as a stand-alone drill. If 400-550 rpm is enough to work with fasteners, then it is better to drill at a higher speed (900-1200 rpm).
When choosing a screwdriver, give preference to models that have adjustable torque and chuck rotation speed (it’s more convenient to work).
Another important point– the tool has two rotation speeds. The first is used for screwing, and the second for drilling.
Chuck type
In addition to standard key-locked chucks, quick-release chucks are very popular. The benefit of the latter is obvious: they allow you to change a bit for a drill or a nut head in a matter of seconds.
Additional functions
They cannot be called useless “bells and whistles”, since many of them significantly facilitate and speed up work.
Let's list the most common ones:
- Reverse has become a standard function (it’s hard to imagine a screwdriver working without reverse rotation);
- Adjustment of rotation force (eliminates “tightening” of screws);
- Spindle lock (makes it easier to change attachments in the chuck);
- Backlight (allows you to work in an unlit room or outdoors with poor visibility);
- Case (convenient to store the tool, Charger and a set of nozzles).
If you are going to buy an inexpensive screwdriver with a nickel-metal hydride or nickel-cadmium battery, then look for a dual-battery option. In this case, you can work calmly without wasting 2-3 hours on recharging.
Since a household screwdriver cannot be called a lightweight tool, pay attention to its ergonomics. Assess how comfortably it fits in your hand and whether it is well balanced in weight (the center of gravity should be in the middle of the handle).
Popular brands and approximate prices
We will not argue about which cordless screwdriver is better, comparing household and professional models. Correct assessment can only be carried out within one price category.
Let's see what sellers offer today for buyers with different needs and wallet thicknesses.
Budget option drill/driver HAMMER ACD121A
In the budget segment (from 2,500 to 4,000 rubles), top sellers include the brands Hammer, Einhel, Skil, Interskol and Zubr. With this amount, you can purchase a good one or two-speed hammerless household screwdriver with a case and two nickel-cadmium batteries.
In the price category from 4,500 to 6,500 rubles, the undisputed leaders are the brands Bosch, Makita and Metabo. In addition to non-impact models, in this price range you will have access to an impact drill/driver, which is indispensable when working with concrete and brick.
Popular brands feel confident not only in the amateur, but also professional category, where price tags start at 7,500 rubles.
Here you can note the same Bosch and Makita, as well as the Dewalt and Hitachi brands.
Equipped with lightweight and capacious lithium-ion batteries, backlight working area, impeccable in terms of ergonomics, they are very comfortable and reliable in operation.
If you are a tinkerer, then you probably have a screwdriver in your arsenal, the price and quality of which suits you. If not, then you are one of those who is just about to make a profitable purchase. You will not be able to do without this tool when carrying out repairs or during construction work. Such equipment is perfect for solving any household problems. However, you first need to decide on the basic selection criteria, which will be discussed below. Some consumers carefully study reviews before purchasing a product, because they sometimes force them to make the right purchase. If the choice is made correctly, then you will not need to purchase spare parts for the screwdriver during its entire service life.
Selecting a model by rotation speed and torque
It is important to study the rating well before visiting the store. The screwdriver can be selected based on reviews from experienced craftsmen. Experts advise taking into account rotation speed and torque. The last parameter will determine how much force the tool applies when screwing in the fasteners. This characteristic also indicates the strength with which the equipment resists the load.
If you want to choose a tool for solving everyday problems, then the torque should vary from 10 to 15 newton meters. Professionals choose equipment with a torque limited to 135 Newton meters. As a result, craftsmen have the opportunity to work with hard materials. The motor shaft of such a device will be capable of making 1300 revolutions in one minute.
If we are talking about household models, then you will have to be content with 500 rpm. It is important to consider the rating before visiting a store. The screwdriver you choose based on consumer recommendations will meet all requirements. Depending on the torque, you should select the length of the fastener, as well as its diameter. If you compare a screwdriver with other electric tools, you should highlight the ability to adjust the torque, for which a limiter is used. This addition is represented by a ring located after the chuck. As soon as the master overcomes the force after which the screw will no longer enter the wall, he will hear the characteristic sound of a ratchet. Such a restriction will protect the tool from breaking the slot, wearing out the bit, and deep recessing of the fastener into the surface.
Model selection depending on power source
There is a cordless screwdriver and a mains powered tool. The latter has an impressive mass, and you can work with them without moving far from electrical outlet. For those who like not to depend on the battery charge, it is proposed to purchase an additional extension cord, the footage of which will determine the range of use of the tool. Devices with batteries weigh less, but you can work with them for a very limited time. Consumers who choose a cordless screwdriver value autonomy. If you often have to carry out construction work in the field, then the battery model will be more convenient.
Selecting a model by battery
Consumers who choose convenience over the need to recharge a tool every half hour take their choice of batteries seriously. The latter are represented by three varieties, the first is nickel-metal hydride batteries, the second is lithium-ion, while the third is nickel-cadmium devices.
When to choose a screwdriver with a nickel-metal hydride battery
The screwdrivers can be powered by a Ni-MH battery. They become more common in Lately, since European models are equipped with them. They are environmentally friendly, light weight and small in size. Spare parts for the screwdriver can be purchased at a service workshop, as well as a battery. The main advantage of the above-mentioned batteries is the absence of a memory effect, but there are also disadvantages. It is important to remember that such batteries do not like overcurrent and exposure to low temperatures. A device powered by this battery will cost more, but the number of recharges in this case is 1500. If necessary long storage The battery should be charged and left in a discharged state is unacceptable.
When to choose a screwdriver with a nickel-cadmium charger
If you want to choose good screwdriver rechargeable, it is important to remember that the above-mentioned battery is more toxic, but it has twice the number of recharges. The cost of tools based on nickel-cadmium cells is somewhat lower; batteries of this type are not at all afraid of frost. That's why for Russian conditions they fit perfectly. But these batteries are characterized by strong self-discharge and memory effect, which can be called significant disadvantages.
When to choose a lithium-ion battery
The consumer who wants to choose a quality tool first reads the rating. In this case, you can purchase a screwdriver at affordable price and with outstanding characteristics. For example, lithium-ion batteries are not installed so often in screwdrivers. They are characterized by maximum sensitivity to cold, and their power is low. The master can count on 3000 recharges; such a battery has no memory effect. It should not be surprising that the equipment will have a high cost, which is not compensated even by its impressive capacity. Such batteries are almost not subject to self-discharge, which is why they are convenient to use at home when you have to use the tool often.
Rating of popular models
Professionals and amateurs are increasingly choosing Makita brand products today. Screwdrivers are no exception. An excellent example is the DDF343SHE model, which costs 8,900 rubles. The tool is equipped with a quick-release chuck and a drill function. The master will be able to work in one of two speeds. On Idling the equipment is capable of delivering 1300 rpm. The model's torque is 36 Nm. When choosing a screwdriver, the price of which should be affordable, you can prefer the Hyundai company; among its models, it is worth highlighting the A1220Li, the price of which is 5,500 rubles. It will be possible to work in one mode - drilling, but use one of two speeds. The maximum idle speed is 1100 in one minute. The maximum torque is equivalent to 28 Nm.
Combination of good quality and affordable price
Experts advise that you definitely consider the rating. The screwdriver you choose will have the characteristics you need. On the relevant market you can find the Hammerflex ACD182 model. You will have to pay 4,500 rubles for it. The device is equipped with a quick-release chuck, and you can work in one of 2 modes, namely drilling and driving screws. The maximum idle speed for this tool is 1200 per minute. This cordless screwdriver has a maximum torque of 22 Nm.
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How to choose a screwdriver
A screwdriver is a very useful tool in the household. It will help both during repairs or construction work, and for various household purposes, for example, hanging a shelf or assembling furniture. Therefore, a screwdriver is simply necessary in any home.
So how to choose a screwdriver for home use? Arriving at hardware store, you will see a huge range of products. In order to do right choice, you need to pay attention to the main characteristics of screwdrivers.
Screwdriver type
First, you need to decide which device you want to buy: household or professional. Of course, for ordinary situations, a household screwdriver will easily suffice. Household appliances have slightly less power and shorter operating time without recharging, but their cost is significantly lower.
Professional screwdrivers have higher parameters, high-quality materials and, accordingly, a high price. Such devices are worth buying only if you plan to use them frequently under high loads. They typically charge fully within an hour, while household screwdrivers will take three to seven hours to charge.
Rotational speed
When choosing a screwdriver, it is important to pay attention Special attention on the rotation speed. Here you need to evaluate for what purposes you are going to use the tool. For example, screws are tightened at a speed of 350-500 rpm, and drilling should be performed at a speed of at least 1200-1300 rpm.
It will be useful to choose a screwdriver with the ability to control the motor speed. This is useful when drilling holes: the lower the speed at the beginning of drilling, the more accurately and accurately you will drill the hole.
Torque
The most versatile tool is one that has high torque. Such a tool can even drill into hard materials.
In order for the screwdriver to cope well with tightening tight screws and drilling soft materials, for example, wood, you need to buy a tool with a torque of 5-15 N*m. This is quite enough for household use. For professional use, the screwdriver can have a torque of up to 130 N*m.
If you go to a professional shop, you will have the opportunity to test the tool in action: usually there is a test bench where you can try tightening a few screws or drilling holes.
Screwdriver battery
Another important parameter when choosing a screwdriver, this is the type of battery. There are three main types of batteries depending on the material from which they are made:
- Lithium-ion (Li-Ion)
- Nickel-cadmium (Ni-Cd)
- Nickel metal hydride (Ni-Mh)
Household appliances usually use nickel-cadmium batteries, and less commonly, nickel-metal hydride batteries. If your screwdriver contains such a battery, you need to remember that it can only be charged when it is completely discharged, otherwise its capacity will decrease. This is called the memory effect.
To make it comfortable for you to work with such a tool, it is best to have a spare battery with you: as soon as one of them runs out, you can immediately replace it with a second one. By the way, the most advanced models of screwdrivers support both nickel-cadmium and nickel-metal hydride batteries.
Lithium-ion batteries do not have a memory effect, they are the most powerful and safe for humans, since they do not contain cadmium, compared to a nickel-cadmium battery. Li-Ion batteries charge quickly and have a charge-discharge rate of up to 3000 times; for other types of batteries this number is about half as much. On the other hand, these batteries do not withstand freezing temperatures so well.
There are also screwdrivers that operate on mains power. Of course, this screwdriver will limit your movements. As a rule, they are heavier than battery-powered ones. It is worth choosing an electric tool only if you mainly work with hard materials.
Handle shape and position
When purchasing a screwdriver, for your convenience, it will be useful to pay attention to the handle, or rather to its shape and location. Take the device in your hand: it should lie comfortably in your hand.
The handle can be located on the side, like a pistol, or at the center of gravity of a screwdriver. The second option is preferable, since in this case the hand holding the device will get less tired.
Useful features
It is best that the screwdriver you choose has additional functions that will make working with the tool more comfortable. The reverse function is very useful: if necessary, you can use a screwdriver to unscrew screws or free a stuck drill.
Others useful features are the presence of a striking mechanism, an impulse or increased torque for a while, the presence of several speeds, backlighting, etc.
HOW TO CHOOSE A SCREWDRIVER, choosing a screwdriver by parameters and other useful information.
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Choosing the right screwdriver for your home
The screwdriver is useful tool in professional construction, household use, repair, capable of performing many functions. If you are wondering how to choose a screwdriver for your home, cordless or corded in 2017, taking into account the pros and cons various models, it is necessary to understand this issue in detail. Here you will find an overview of the parameters and capabilities of this device, as well as tips on choosing a reliable screwdriver that will serve faithfully long years. Make repairs only with reliable and proven tools that will satisfy you with high quality.
Design
When choosing an inexpensive but good screwdriver, study its design features. The design should consist of the main elements:
- DC motor;
- gearbox;
- batteries;
- speed control buttons;
- load limiter.
Types
There are two types of tools:
- domestic;
- professional.
Before purchasing a construction screwdriver, consider how often you will use it. The home model is less powerful and is ideal for those who only intend to use it occasionally. According to customer reviews, a professional screwdriver is best suited for frequent use, even if you are not involved in the construction industry. It is always much better quality, more powerful and more functional than household ones.
Selecting a screwdriver according to parameters
To choose the right screwdriver according to its parameters, you should carefully study all the characteristics and decide which of them will definitely be needed in your work, and which you can save on. Main parameters:
- power;
- operating speeds;
- food type;
- cartridge type;
- maximum torque;
- reverse;
- additional functions.
Power
Power represents the voltage coming out of the battery. This indicator is in the range of 1.2-36 V. According to power characteristics, screwdrivers with voltages of 6, 12, 18, 24, 36 V are considered common. The more powerful the device, the slower the battery discharge decreases. But such models have the most suggestible weight. You should still select a screwdriver based on its operating conditions:
- 3-6 V – the most simple work;
- 10-15 V – drilling non-solid materials (for example, drywall);
- from 18 V – drilling materials with high hardness and strength.
Network devices are more powerful because they operate directly from the mains power supply, rather than from a battery. The most common indicator among household models is 450-650 W. If you are planning long and complex work, then you should choose a device with higher performance.
Number of operating speeds
The device can have from 1 to 3 speeds. It is recommended to select a device with at least two modes, since they are intended for a specific type of work. The most low speed serves for screwing in fasteners, the other two are for drilling. You should not use speed modes for purposes other than their intended purpose, since this will put an unwanted load on the gearbox.
Power type
Based on the type of power supply, instruments are divided into two categories:
- battery;
- working from the network.
Cordless screwdrivers occupy the first position in popularity on the market, and are also considered the most practical. By choosing a cordless screwdriver for your home, you get the opportunity to work regardless of access to the power supply. Three types of batteries are used:
- lithium-ion;
- nickel-cadmium;
- nickel metal hydride.
Household screwdrivers are most often equipped with nickel-cadmium batteries, which are distinguished by their affordability, reliability and energy intensity. They are also characterized by the highest possible number of charging/discharging processes during correct operation. Disadvantages include large size, significant weight and loss of capacity due to inadequate charging and discharging.
Cordless screwdrivers with a nickel-metal hydride battery are lightweight, have high energy consumption and are impact resistant. However, they charge much more slowly and are designed for fewer cycles. It is impossible to use such devices in low temperature conditions.
Screwdriver with lithium-ion battery– a modern solution. Such batteries are characterized by small parameters and lightness, a large number of cycles, low self-discharge and simple conditions service. In addition, you can charge them as you wish, this does not affect the capacity. However, they also cannot be used at low temperatures, and there is also a danger of overheating.
A significant parameter of a battery tool is capacity. It determines how long you can use the device without recharging. For everyday use, a capacity of 1.2-2.4 A/h is sufficient.
With a mains-powered screwdriver, everything is simpler. Its coverage area is limited by the power connection. In this case, choose models with the longest cord possible or make sure you have extension cords.
Chuck type
The chuck is the part of the structure that holds the drill bit or bit. Varieties:
- Toothed (key). The drill is secured using a special key. You will have to spend a little effort and time on this procedure, but in return you will receive the most reliable fastening. It is recommended to buy a screwdriver with a key chuck if you will be doing a lot of work with wood and other hard materials.
- Quick-clamping. The most practical type. To install a drill, just insert it into a special hole. The fastening strength is only slightly inferior to the gear mechanism.
- Bat cartridge. This is a special mechanism that is designed for attachments various shapes(hexagonal, cross, flat, etc.). Changing the nozzle takes a few seconds.
An important characteristic of a screwdriver is the diameter of the chuck. It determines the parameters of the bit and drill with which the tool can interact. The maximum permissible diameter varies between 6-16 mm, but the higher it is, the more possibilities available to you.
Maximum torque
Torque is a very important performance indicator. He is highest load, with which the device can operate at a certain speed. The higher this indicator, the larger fasteners the device can screw in. For work at home, it is better to buy a screwdriver with a maximum torque of 10-12 Nm, but not less.
Reverse
Reverse is an important and necessary function that is useful in both home and professional screwdrivers. Situations arise when the fasteners are not screwed in very well. To avoid spending a lot of time and effort manually removing them with a screwdriver, use the reverse function. It relates to the device cartridge and implies its ability to rotate in the opposite direction. Currently, any inexpensive but good screwdriver is equipped with this function.
Weight
Instruments can vary in weight - from 400 g to several kilograms. But both for everyday use and for professional use, it is advisable to buy a screwdriver no heavier than 1-2.5 kg. Large quantity kilograms quickly causes fatigue in the hands, and in smaller devices the power and other functionality leave much to be desired.
Additional functions
High-quality models are equipped additional features:
- Locking the power button - when activated, the risk of accidental startup disappears, which is fraught with various negative consequences.
- Protecting the battery from overheating, complete discharge and overload - with all of the above phenomena, the battery may simply fail. However, in many models it is impossible to restore it.
- LED flashlight – working with backlight is much more convenient, especially in hard-to-reach places.
Which company to choose a screwdriver
Which screwdriver company to choose depends on the available budget and the conditions in which the tool is planned to be used, since each segment has its own leading manufacturers. The most popular devices in 2016 were from the following companies:
- Bosch
- Makita
- Interskol
- Hitachi
- Metabo
Conclusion
Now you probably won’t have any difficulties in terms of which screwdriver to choose for your home in 2017. To purchase the most best device, battery-powered or mains-powered, carefully read all its characteristics and make sure that its quality matches the cost and its functionality is ideal for you.
Modern technology makes housework faster and easier. This also applies to the category of repair and construction work. Drills, hammer drills, and screwdrivers come to the rescue; they can make work much easier. But when choosing an assistant, you need to look at the characteristics of the product. Why pay more if you don’t need a number of functions at all. Let's talk about how to choose the right screwdriver for your home.
Screwdriver necessary thing for home. It will help speed up time repair work. You don't have to expend enormous energy and waste time on hours of tightening or unscrewing screws and other fasteners using a screwdriver.
Why do you need a screwdriver?
Using a screwdriver, you will do this in 4 steps, which will take just a few seconds:
- Place the fastener into the hole;
- Bring the screwdriver to the element;
- Press the button;
- Release the button.
You can also use a screwdriver to make holes in various materials(wood, stone, metal).
What parameters should you pay attention to when choosing a screwdriver?
Video on the topic
Video: how to choose a screwdriver - expert advice
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To make the right choice, you need to know what certain parameters are responsible for. Here are the main symbols that you can find on the battery packaging:
- Nm (newtonometer);
- Rpm;
- Ni-Cd and Li-ion;
- Ah (amp/hour);
- V (volts).
Torque
The first parameter (Nm) means torque and is responsible for the “strength” of the device. For simple household needs related to the usual tightening and unscrewing of self-tapping screws, 10–12 Nm will be sufficient. If expected roofing, then you need to choose the option with 20 Nm. In any case, if you take a screwdriver for the home, then 30 Nm will be enough for you. You will be able to do any work, even with brick, metal, and not worry that the battery will quickly discharge due to the force applied.
Rotational speed
For drilling you need larger number revolutions (revolutions per minute parameter), and for ordinary household needs it is much less. For a household screwdriver, this value falls within the range from 400 to 1300 rpm. For drilling, a speed of up to 1000 is required, and for working with fasteners no more than 500. This parameter is adjusted using a ring located on the device.
Battery
The screwdriver can be powered or equipped with a battery. By purchasing an autonomous option, you do not have to look for an energy source. This option is more mobile and suitable for working in the field. You will not be burdened by the presence of a cord. But the price for this option will be at least 1.5 times higher.
Just on the batteries you will see the value Ni-Cd or Li-ion. The first option says that this is a nickel-cadmium option. It is most often installed on home versions of screwdrivers. It does not have such a long service life (up to 1000 recharges). In addition, it has a “charge memory”. This means that it needs to be completely discharged and only then charged. Otherwise, the battery capacity will decrease. Lithium-ion (Li-ion) does not have this problem, but the price is higher. Therefore, when choosing a screwdriver for your home, you need to ask yourself about the frequency of use. If you rarely use it, it is better to go with a cheaper option.
Now you know how to choose a cordless screwdriver. Let's now talk about the advantages of the network-powered option. This:
- Low price;
- No need to spend money on batteries;
- There is no need to charge batteries every 20–30 minutes.
Although the option providing autonomous operation, the second category is more in demand, also has the right to exist and be actively used.
Battery capacity
This parameter is responsible for the operating time without recharging. Capacity is expressed in ampere/hour. Accordingly, the higher this indicator, the more longer time enough. For household models, 2–3 Ah is enough.
Screwdriver power
Video on the topic
Video test of screwdrivers
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The characteristic designated by the letter B (volt), which is responsible for power, will help you choose the right screwdriver. The higher the indicator, the less effort will be spent on completing the work. But the higher the power, the larger the battery volume should be. Since if there is a discrepancy between these characteristics, your screwdriver will be enough to tighten several screws. Then you have to recharge again!
Which screwdriver should you choose for working at home? Models with a power of 12–18 V are suitable for these purposes.
Extra options
When choosing a screwdriver, you still need to pay attention to the following points:
- The set includes 2 batteries - in our opinion, a necessary thing;
- Impact mechanism;
- The backlight is a rather convenient thing; once you get used to it, it’s difficult to use other tools;
- Sensitivity to pressing the shutter release - the ability to change the rotation speed by changing the sensitivity of pressing the button.
Which brand of screwdriver should I choose?
Screwdrivers of foreign brands are considered the most popular and reliable. They have a number of advantages: they have high performance, high-capacity batteries and long service life. However, the price starts from 3,500 rubles. According to experts, the following brands are considered the best:
- Bosch (GSR 1440–LI);
- Hitachi (DS12DVF3);
- Makita (6271 DWAE);
- DeWALT (DW907K2);
- AEG (BS 12 °C IQ).
To summarize, it turns out that for the home you need a screwdriver powered by mains power or a battery with a capacity of 2–3 Ah, a power of 12–18 V, a torque of 30 Nm and a rotation speed of 500–1000 rpm!.
Not so long ago, work on arranging screw fastenings was carried out purely manually, and only screwdrivers or special keys were used as tools.
Now this approach is considered almost archaic, since wherever it is convenient, it is used to arrange threaded connections. special device called a screwdriver. With its help, all operations for inserting and unscrewing screws are significantly simplified, and the time required to carry them out is reduced by an order of magnitude.
Choosing the right screwdriver for your home is a task that can only be solved after a detailed familiarization with this tool.
Products called screwdrivers consist of several main parts. First of all, this Electrical engine with gearbox. The engine rotates at a certain speed (varying from model to model), and through a gearbox the operating torque is transmitted to the spindle. The gearbox is equipped with a special clutch that reacts to the amount of torque and limits it when the load exceeds the normalized value.
The screwdriver has a spindle with a chuck into which special equipment is inserted for screwing in or out of a screw: a bit or a drill.
The control electronic unit of the tool is equipped with an on/off button and a separate lever for switching the direction of rotation (reverse).
The screwdriver also contains a power supply that supplies electricity from the mains or from a built-in removable battery. In the version powered by 220 Volts, the device must include a power cord.
Where is it used?
Screwdrivers are widely used during installation operations, organized both at home and in production. Based on this feature, devices can be classified as universal devices.
They also resort to the capabilities of screwdrivers professional builders who have to deal with large volumes of prefabricated structures. When using them, the speed of performing monotonous operations on arranging standard fastenings increases significantly.
At the same time, the quality of the formed installation connections increases, since, in addition to their main function, screwdrivers can have such additional option, like drilling, which must be taken into account when choosing.
Professional and amateur models
In accordance with the complexity and nature of the work to be done, the entire variety of products in this class is divided into two large groups - professional and Appliances. The former are intended for use in the installation of building structures in continuous mode and in large volumes. Amateur household models of screwdrivers are used mainly for one-time assembly operations organized within an apartment or country house.
According to their own technical capabilities and functionally, these two versions differ significantly from one another. Their differences are manifested primarily in power electric drive and the magnitude of torque, which makes it possible to improve the quality and efficiency of the assembly of structures (reduce the time of operations).
The spindle rotation speed in this case is not of decisive importance, since this parameter has practically no effect on productivity.
Due to the difference in the performance of professional and amateur screwdrivers, their prices differ significantly. Therefore, based on the price, you can make some initial conclusions that will influence the final choice.
Multifunctional products
According to their design, all known examples of these products are divided into three large categories:
- electric screwdrivers;
- special powerful impact wrenches;
- universal drills capable of working in screwdriver mode.
Note! The last of the listed modifications can be supplemented with a shock function, which allows you to significantly expand the range of applications.
The most popular among amateurs and professionals are models of screwdrivers that are not tied to electrical network and battery operated. However, if necessary, anyone can use a suitable network device.
Features of choice
Before choosing a cordless screwdriver for your home or private workshop, you need to study in more detail all the models on the market, paying special attention to the previously listed parameters.
During the search and selection process suitable model First of all, you should understand what is more convenient for high-quality performance of the task - an electric screwdriver, a wrench or a multifunctional drill. After solving this problem, you need to decide on the following important characteristics selected model:
- torque value (power);
- food type;
- type of spindle chuck for a bit;
- availability of additional functionality;
- ergonomics and design.
Let's consider the procedure for choosing a screwdriver in relation to each of the above points.
Torque
This parameter for most household screwdrivers is about 200-300 N/m.
Note! For expensive models belonging to the class professional tool(with an engine power of more than 1000 Watt), this value can reach 1000 N/meter.
Torque is directly related to the drive power of the screwdriver, which for different devices can range from 350 to 1500 Watts. The minimum values of this indicator are typical for models intended for amateur purposes. And powers close to 1000 Watts are usually chosen in cases where it is necessary to decide which screwdriver should be chosen for professional work.
Type of food
The choice of a suitable device model based on the type of power supply depends on the conditions of the upcoming work (the availability of a mains voltage of 220 Volts), as well as on the user’s preferences. In a situation where there is no mains voltage near the place where they are taking place, the only right choice is to purchase a battery-powered screwdriver.
The same decision is reached in cases where the performer does not want to be connected to a wired cable and agrees to the additional costs and inconveniences that are inevitable with autonomous power supply. Inconvenience means the need to periodically recharge the built-in battery.
A similar decision is made in rural areas remote from the city (at the dacha, for example), where the voltage is highly unstable.
When choosing a cordless tool, pay attention to the battery capacity, charging time, and the presence of a spare one. Now the most popular are lithium-ion devices, but they quickly discharge at low temperatures (near zero and below). It is not recommended to allow such batteries to be completely deeply discharged.
IN cordless screwdrivers Nickel-cadmium chargers can also be used. These batteries have a memory effect - they need to be charged only after they are completely discharged. The advantage is resistance to frost, can be stored completely discharged, unlike lithium-ion ones. For operational operation, it is recommended to have one more battery in reserve.
Instead of a screwdriver with a cadmium battery, you can choose a tool with a nickel-metal hydride charger. It is more environmentally friendly, has a large capacity, and less memory effect, although its service life is also shorter.
Type of cartridge (holder)
Most amateur and professional screwdrivers are equipped with self-clamping chucks, which ensure quick and easy change of bits or drills. These devices can have a single or double coupling design.
In the second case, when installing and removing a working tool (bits or drills), the lower coupling must be held manually, and the upper coupling must be simultaneously tightened or loosened. Models with a single clutch are much easier to operate, and all of these operations can be performed with one hand (without the need to pay attention to the details of loading the cartridge).
Important! Fixing the bit in this way is only possible if this model has an automatic or forced spindle locking function.
Cam-type chucks, clamped with a special key, are practically not used in screwdrivers. However, experts advise having such clamps in the kit (in case you need to work with a drill or clamp the bit harder).
Additional features (belt feeding of screws)
Some models of screwdrivers have an additional option that allows you to automatic feeding screws fixed in a special tape mechanism with the same pitch. This device ensures precise installation of the head of the next screw directly above the bit, followed by its reliable screwing in.
In addition, the feed mechanism provides for adjusting the depth of screwing in hardware, which is very important during installation plasterboard sheets with an easily damaged surface. Choosing this type of screwdriver will greatly simplify your work. Products of this class, in addition to the main functional parts, have a working magazine change head in the gear unit. They also have a special nozzle, through which screws (self-tapping screws) built into the tape are fed into the work area.
Note! The screw heads are secured using special locking rings.
Different models of these devices can vary greatly in their capabilities, which ultimately depends on the manufacturer of a particular sample.
Popular brands of screwdrivers
One of the manufacturers of screwdrivers is the German company Bosch, which produces a wide range of products of various configurations. Thus, a universal model from this manufacturer called Festool C15 contains in its kit a special adapter for hex bits.
In addition, it provides space for installing a quick-release chuck of a special design, and the kit includes a special gear attachment that allows screws to be screwed in at right angles.
Another company familiar to most users, Makita (a subsidiary of Bosch), is the undisputed leader in the ranking of manufacturers of tools in this class. It is distinguished by its wide the lineup, which includes not only cheap products, but also expensive professional samples.
Screwdrivers from the well-known company AEG can hardly be called cheap, but they fully pay for themselves with the capabilities they contain. In turn, DeWalt brand models are distinguished by high-tech innovations and promising developments. Hilti tool kits are among the multi-functional examples of this class of products, with prices that many people find unreasonably high (despite attractive warranties).
Inexpensive and good quality products are in great demand among the average consumer. famous models, widely represented on the market by such foreign companies as Hitachi, Sparky, and Skil. Among Russian manufacturers Among amateur and professional screwdrivers, the companies “Interskol”, “Zubr” and “Caliber” stand out.
It should be noted that when operating screwdrivers, certain difficulties may arise with spare parts required when repairing the product. This circumstance should be taken into account when trying self-repair previously purchased screwdriver.
Modern technology makes housework faster and easier. This also applies to the category of repair and construction work. Drills, hammer drills, and screwdrivers come to the rescue; they can make work much easier. But when choosing an assistant, you need to look at the characteristics of the product. Why pay more if you don’t need a number of functions at all. Let's talk about how to choose the right screwdriver for your home.
A screwdriver is a necessary thing for the home. It will help speed up repair work. You don't have to expend enormous energy and waste time on hours of tightening or unscrewing screws and other fasteners using a screwdriver.
Using a screwdriver, you will do this in 4 steps, which will take just a few seconds:
- Place the fastener into the hole;
- Bring the screwdriver to the element;
- Press the button;
- Release the button.
Using a screwdriver, you can also make holes in various materials (wood, stone, metal).
What parameters should you pay attention to when choosing a screwdriver?
To make the right choice, you need to know what certain parameters are responsible for. Here are the main symbols that you can find on the battery packaging:
- Nm (newtonometer);
- Rpm;
- Ni-Cd and Li-ion;
- Ah (amp/hour);
- V (volts).
Torque
The first parameter (Nm) means torque and is responsible for the “strength” of the device. For simple household needs related to the usual tightening and unscrewing of self-tapping screws, 10–12 Nm will be sufficient. If roofing work is planned, then you need to choose the option with 20 Nm. In any case, if you take a screwdriver for the home, then 30 Nm will be enough for you. You will be able to do any work, even with brick, metal, and not worry that the battery will quickly discharge due to the force applied.
Rotational speed
Drilling requires a higher number of revolutions (revolutions per minute parameter), but for ordinary household needs it is much less. For a household screwdriver, this value falls within the range from 400 to 1300 rpm. For drilling, a speed of up to 1000 is required, and for working with fasteners no more than 500. This parameter is adjusted using a ring located on the device.
Battery
The screwdriver can be powered or equipped with a battery. By purchasing an autonomous option, you do not have to look for an energy source. This option is more mobile and suitable for working in the field. You will not be burdened by the presence of a cord. But the price for this option will be at least 1.5 times higher.
Just on the batteries you will see the value Ni-Cd or Li-ion. The first option says that this is a nickel-cadmium option. It is most often installed on home versions of screwdrivers. It does not have such a long service life (up to 1000 recharges). In addition, it has a “charge memory”. This means that it needs to be completely discharged and only then charged. Otherwise, the battery capacity will decrease. Lithium-ion (Li-ion) does not have this problem, but the price is higher. Therefore, when choosing a screwdriver for your home, you need to ask yourself about the frequency of use. If you rarely use it, it is better to go with a cheaper option.
Now you know how to choose a cordless screwdriver. Let's now talk about the advantages of the network-powered option. This:
- Low price;
- No need to spend money on batteries;
- There is no need to charge batteries every 20–30 minutes.
Although the option that provides autonomous operation is more in demand, the second category also has the right to exist and be actively used.
Battery capacity
This parameter is responsible for the operating time without recharging. Capacity is expressed in ampere/hour. Accordingly, the higher this indicator, the longer it will last. For household models, 2–3 Ah is enough.
Screwdriver power
The characteristic designated by the letter B (volt), which is responsible for power, will help you choose the right screwdriver. The higher the indicator, the less effort will be spent on completing the work. But the higher the power, the larger the battery volume should be. Since if there is a discrepancy between these characteristics, your screwdriver will be enough to tighten several screws. Then you have to recharge again!
Which screwdriver should you choose for working at home? Models with a power of 12–18 V are suitable for these purposes.
Extra options
When choosing a screwdriver, you still need to pay attention to the following points:
- The set includes 2 batteries - in our opinion, a necessary thing;
- Impact mechanism;
- The backlight is a rather convenient thing; once you get used to it, it’s difficult to use other tools;
- Sensitivity to pressing the shutter release - the ability to change the rotation speed by changing the sensitivity of pressing the button.
Which brand of screwdriver should I choose?
Screwdrivers of foreign brands are considered the most popular and reliable. They have a number of advantages: they have high performance, capacious batteries and a long service life. However, the price starts from 3,500 rubles. According to experts, the following brands are considered the best:
- Bosch (GSR 1440–LI);
- Hitachi (DS12DVF3);
- Makita (6271 DWAE);
- DeWALT (DW907K2);
- AEG (BS 12 °C IQ).
To summarize, it turns out that for the home you need a screwdriver powered by mains power or a battery with a capacity of 2–3 Ah, a power of 12–18 V, a torque of 30 Nm and a rotation speed of 500–1000 rpm!.
When doing household work, any owner is often faced with the need to tighten nuts, drive screws or assemble furniture. Of course, all this can be done manually. However, modern manufacturers offer special tool, facilitating this work. A screwdriver will greatly simplify and speed up the tightening process.
Application area
Direct purpose of the screwdriver:
Unscrewing and tightening various fasteners (bolts, screws, screws, etc.);
- drilling required holes in brick, metal and wood.
There is also folk use of this tool. So, a screwdriver is used for:
Mixing paints and building mixtures;
- drilling holes in the ice while fishing in winter.
Today, a screwdriver is widely used by owners of apartments and private houses when performing various construction works. Professional craftsmen This tool is also used for assembling furniture, as well as for fastening drywall and various parts.
The design of the screwdriver allows it to be used in the most difficult to reach places. But at the same time, it is the battery unit that is most popular among craftsmen. It makes it possible to work where there is no electrical network.
Anyone who has ever picked up a screwdriver will no longer reach for a screwdriver. will become a welcome assistant in many construction issues. The advantage of purchasing a screwdriver is its ease of handling, as well as its constant readiness for use due to the built-in battery.
Types of models
How to choose a screwdriver for your home given the existing variety of manufacturers and the tools they offer? First of all, you need to familiarize yourself with the types of models available on the consumer market.
All screwdrivers are divided into household and professional. The assignment of a tool to a particular group is made based on the size of the cartridge, the power of the nutrient element, the configuration, the price, as well as the presence of additional functions.
Main settings
When watching popular TV shows about repairs, many of us probably paid attention to how craftsmen using a screwdriver perform in a matter of minutes such volumes of work that would take hours to do with a regular screwdriver. It is not surprising that after this a significant number of viewers are thinking about buying this electric tool.
How to choose a screwdriver for your home so that it does not disappoint your expectations? To do this, you will need to familiarize yourself with the main characteristics of the tool. Moreover, it is recommended to start with the engine. Any electric tool has a certain power, on which the performance of the device depends. But what about autonomous devices? In them, power is related to the battery capacity.
If you don’t know how to choose a good screwdriver, then start getting acquainted with the model from the engine. What should it be like? Experts positively characterize the type without commutator brushes. They are virtually silent, maintenance-free and have high performance.
Experts recommend familiarizing yourself with such a parameter as the frequency with which the tool’s working units rotate. By this characteristic you can find out about the purpose of the screwdriver. When small, a high rotation speed of the cartridge is ensured. This feature of the tool will be needed for drilling holes of small diameter.
Combination screwdriver
Many owners prefer to have a tool in their home that performs various functions. As such, a cordless drill/driver can be purchased. How to choose a model that will allow you to easily perform all the tasks facing its owner?
As for professionals, they focus their attention on expensive, high-quality tools. Home craftsmen choose regular models, which have a reasonable price. If the purpose of your purchase is a cordless drill/driver, how to choose the right tool for the job? For beginners this is not an easy task. First of all, you will need to gain certain knowledge about the power characteristics of the tool and its other subtleties.
When choosing this wonderful assistant, keep in mind that drill-drivers typically have an option that allows you to use the tool with two speeds. Thus, with minimal effort, the rotation of the cartridge occurs more slowly. Pressing harder causes the number of revolutions to increase.
For more careful handling of screws, the tool may have a clutch that adjusts the torque. When the screw is fully screwed in, it begins to slip. This is a very convenient option that helps keep drills, as well as a replaceable attachment, in working condition.
When choosing a drill/driver, carefully read the passport data. Experts recommend paying attention to the weight of the tool, which is indicated along with the battery. Small and lightweight drills/drivers will not have as much energy and power as heavier ones.
Selecting a tool by battery type
How to choose an electric screwdriver based on this element, because battery capacities have different meanings? This question should not cause much difficulty. At larger capacity battery, the power of the unit itself certainly increases. Batteries in screwdrivers can be either nickel-cadmium, nickel-metal hydride, or lithium-ion.
If you don’t know how to choose a cordless screwdriver for your home, then take the advice of experts and look for a model equipped with a spare battery. The cost of such an additional accessory will certainly be worth it. This becomes clear when looking at the prices of new batteries, which are fifty percent of the cost of the screwdriver itself. Most comfortable models This unit can work with two types of elements (metal hydride and nickel-cadmium). This version of the tool is very convenient.
Lithium-ion batteries
How to choose a cordless screwdriver for your home so that it is reliable in operation? To do this, it is important to pay attention to the type of battery built into it.
Today, lithium-ion cells are widely used. They are equipped not only with screwdrivers, but also with many other tools, as well as portable devices. Such batteries are designed for three thousand charge-discharge cycles. The battery can charge quickly and is quite lightweight.
The main disadvantages of these modern batteries include their short duration (3 years) and high cost. In addition, to get maximum benefit, this element must be used without long breaks.
In this regard, experts advise those who find it difficult to answer the question: “How to choose the right cordless screwdriver?” - purchase tools with lithium-ion cells to perform professional work. It is also recommended not to fully discharge or charge the battery. This will significantly shorten the life of the element. Charge should be between 15 and 90 percent.
Nickel-cadmium batteries
Power tools have been equipped with this type of battery for a long time. And this applies not only to screwdrivers. Such batteries are designed for one and a half thousand charge-discharge cycles. For those who don’t know which screwdriver to choose for the job, experts recommend models with nickel-cadmium batteries. Such a tool will function without problems at temperatures down to minus fifteen degrees. In addition, the manufacturer guarantees uninterrupted battery operation for five years. The buyer will also be pleased with the low cost of such models.
However, the nickel-cadmium battery also has some disadvantages. They should be taken into account if you are faced with the following question: “How to choose a cordless screwdriver for the home?” Among these negative aspects are the rather long (about an hour) charging process and heavy weight nickel-cadmium element.
If you bought a screwdriver with this battery option, then, according to the recommendations of experts, you will need to charge and discharge it completely. This will allow the element, which has a memory to charge, not to reduce its service life. Special conditions You will also need to observe this when storing such a battery. It must be kept charged.
Nickel metal hydride batteries
These batteries are essentially an average option, located between the two described above. If you are faced with the question of how to choose a cordless screwdriver for your home, you need to consider a tool with this type of element.
Nickel-metal hydride batteries are capable of performing about a thousand charge-discharge cycles. There are others positive sides. These include minimal self-discharge and lack of memory for charging. The disadvantage of such a battery lies in its significant weight, as well as its inability to withstand temperature changes and high voltage.
If you choose a screwdriver with this type of battery, then before use it should be completely discharged, and then fully charged. These actions will extend the life of the element.
Today, the most popular screwdrivers are those with a nickel-metal hydride battery. This type is most often found on instruments made in Europe. This type of battery has become widespread due to its environmental friendliness.
Which battery to choose a screwdriver with is up to you. Before purchasing, evaluate the pros and cons of each type of battery and decide on the appropriate model.
Cell Capacitance and Voltage
How to choose the right screwdriver so that it is as efficient as possible? To do this, you should familiarize yourself with such characteristics as battery capacity. At higher values this indicator the tool will be able to perform the greatest amount of work during one charge-discharge cycle.
The voltage of the element, measured in volts, is also important. If you don’t know how to choose a good screwdriver, then listen to the opinions of experts. Choose a model with great value voltage. This will be quite a powerful tool.
Torque and rotation speed indicators
How to choose an electric screwdriver that will become the main assistant for its owner? Please note that there is a clutch to lock the tool under increased load. This is the so-called maximum torque, which operates at 5-10 Nm. The option does not interfere with the tightening of tight anchors and creates conditions for engine safety when loads increase. This threshold value will allow you to work with steel and concrete, as well as make a hole of large diameter.
Those screwdrivers that have high values torque, are assessed by experts as universal. No problem this tool will allow you to work with self-tapping screws, as well as drill hard materials.
When choosing a model, you need to pay attention not only to torque. It is also necessary to evaluate the performance of the engine under high load and how well it is able to maintain speed.
When choosing a screwdriver, many amateur beginners make the same mistake, looking for a model with the highest speed. But you should not chase the maximum values of these indicators. For screwing in screws, five hundred rpm is enough, and for drilling, one thousand three hundred. High speed tool is needed only when working with
Experts recommend purchasing screwdriver models in which the motor rotation speed can be adjusted. When purchasing, it is important to pay attention to the presence of a reverse option. It will allow you to easily remove a stuck drill or a tightly screwed screw.
Tool manufacturers
A potential buyer will certainly ask next question: “Which company should I choose a cordless screwdriver?” And this is not surprising. As with the purchase of any device, much depends on its manufacturer.
Good simple screwdrivers for household work are produced by Bosch, Hammer and Hitachi. Which screwdriver brand should you choose if you are interested in a professional model? Good units Dewalt pleases its customers. This tool has a favorable ratio of quality and price.
However, it is worth considering the fact that brand fame almost doubles the cost of products. For those who are not ready to allocate a significant amount of money to purchase a screwdriver, experts recommend paying attention to less popular but well-established companies. This is, for example, Makita.