TOP-10 of the most powerful screwdrivers

Network and battery screwdrivers differ not only in power sources. Cost, functionality is understandable. But there are parameters that divide them into household and professional. We will tell you what the most powerful electric screwdriver should be and how to determine the power of an electric screwdriver in a particular type of tool.

Place Model
one. WHICH SS-550/1, 550 W Prices Review
2. Makita FS4000, 570 W Prices Review
3. Resanta SS-550-1, 550 W Prices Review
4. Fiolent SHV2-6-RE, 520 W Prices Review
5. Zubrov ZSSh-550, 550 W Prices Review
6. WHILE DA-24L-2K Prices Review
7. BORT BAB-24UX2LI-FDK Li-Ion 2.0 A 24 in x2 bag Prices Review
eight. Resanta Da-24-2LK Prices Review
nine. Sturm! CD3224L Prices Review
ten. WHICH DA-24L-2K/B Prices Review

The main parameters of the battery and the tool itself

The main of the parameters that characterize the work of the screwdriver is the voltage of the battery, on which, in turn, the power of the electric motor and torque depends. For household models, the difference between screwdrivers in voltage is small. On average, it is in the range of 10.8–14.4 V. Productive options designed for constant use can be equipped with 24–36 volts batteries.

The voltage of the battery of the electric screwdriver and the type of battery. Answer what the difference is, you can, knowing what metals were used for its manufacture. For nickel-cadmium batteries, large in size with a similar capacity, the value of the indicator is a multiple of 1.2 V (it is the voltage of one element that is composed of a battery block), for lithium-ion-3.6 V of lithium-ion.

Among other, no less important characteristics can be noted:

  • Twisting the moment, the value of which can be one of the main answers to the question of what the voltage of the battery of an electric screwdriver affects. By this characteristic, you can determine both the diameter and the length of the twisted screw or self.Tapping screw. For large fasteners, as well as for drilling deep and wide holes, and for solid materials, a serious value of the rotating moment is also required. Twisting the moment-12-15 nm (a maximum of 30 nm) will be enough for home models, professional-from 30 nm. The parameter is important, pay attention to it.
  • If the maximum speed is below 1000 rpm, it will be convenient to tighten the screws with the tool and drill soft materials (wood, metal, plastic). If you are going to drill metal, choose models with revolutions above 1,500 rpm. They will have two speeds: the first for fasteners, the second. For drilling.
  • For serial work (installation of drywall sheets, lining lining), choose network screwdrivers with a depth limiter. For work at home I will approach both network and battery models, so choose what more likes.

There are two types of torque of screwdrivers. Starting (larger in size and required to launch the device to work) and constant, that is, a worker. The value of the parameter in modern equipment models can be adjusted. Find out how many modes can be selected from a particular device, you can find out in the documentation available on it. Over, in tools with a pulsed mode of operation (turning on the rotating part with jerks) the capabilities of screwing more. Allowing to periodically increase the torque, they can screw a larger screw.

The issued torque value of the electric motors does not constantly and depends, first of all, on the speed of the motor, the higher the speed, the lower the moment on the shaft.

In addition to the voltage of electric screwdriver and its power, the battery capacity should also be evaluated. The characteristic is measured in ampere hours or milliampere hours. The larger the indicator, the longer the screwdriver can work out without recharging.

The average battery capacity of the household model is 1300 mAh, which is enough for 2-3 hours. Professional equipment requires more work time. And the master who uses the screwdriver throughout the working day, it is worth purchasing a model with a battery from 1.5–2.0 Ah or more.

How to determine the power of an electric screwdriver

When choosing a fitness suitable for performing certain tasks, you should pay attention to various characteristics. Among them, the most important are not only the power of the device and the capacity of its battery, but also the voltage of the battery, and even the value of the torque.

During construction and repair work, the screwdriver is an indispensable tool that simplifies the tightening of various types of fasteners, and sometimes even drilling holes. And, despite the fact that there are two options for the execution of this device. Network and battery, more often the last option is selected to perform household tasks. At the same time, attention is drawn to the parameters of the power tool itself and its characteristics such as voltage in electrical screwdriver, its power, torque and battery capacity. Each of these indicator is important for evaluating and the correct choice of the device. While buying because of suitable power or voltage alone is not worth.

The main parameters of the battery and the tool itself

The main of the parameters that characterize the work of the screwdriver is the voltage of the battery, on which, in turn, the power of the electric motor and torque depends. For household models, the difference between screwdrivers in voltage is small. On average, it is in the range of 10.8–14.4 V. Productive options designed for constant use can be equipped with 24–36 volts batteries.

The voltage of the battery of the electric screwdriver and the type of battery. Answer what the difference is, you can, knowing what metals were used for its manufacture. For nickel-cadmium batteries, large in size with a similar capacity, the value of the indicator is a multiple of 1.2 V (it is the voltage of one element that is composed of a battery block), for lithium-ion-3.6 V of lithium-ion.

Among other, no less important characteristics can be noted:

  • The power of the electric screwdriver, by which it is also possible to determine the speed of twisting of screws and self.Tapping screws. To carry out repairs on their own, there are enough models with a capacity of 500-700 watts. Professional repairman will need more powerful equipment-800–850 W;
  • The number of revolutions of the rotating part of the device per unit time. According to this parameter, it is determined whether the screwdriver can fulfill the task set before it. For example, to tighten the desired type of fastener. So, for the bolt, self.Tapping screw and screws, 500 rpm will be enough, for drilling it will be needed already 1,200 rpm;
  • Twisting the moment, the value of which can be one of the main answers to the question of what the voltage of the battery of an electric screwdriver affects. By this characteristic, you can determine both the diameter and the length of the twisted screw or self.Tapping screw. For large fasteners, as well as for drilling deep and wide holes, and for solid materials, a serious value of the rotating moment is also required. The maximum value of the indicator is 10-60 nm.

There are two types of torque of screwdrivers. Starting (larger in size and required to launch the device to work) and constant, that is, a worker. The value of the parameter in modern equipment models can be adjusted. Find out how many modes can be selected from a particular device, you can find out in the documentation available on it. Over, in tools with a pulsed mode of operation (turning on the rotating part with jerks) the capabilities of screwing more. Allowing to periodically increase the torque, they can screw a larger screw.

The issued torque value of the electric motors does not constantly and depends, first of all, on the speed of the motor, the higher the speed, the lower the moment on the shaft.

In addition to the voltage of electric screwdriver and its power, the battery capacity should also be evaluated. The characteristic is measured in ampere hours or milliampere hours. The larger the indicator, the longer the screwdriver can work out without recharging.

The average battery capacity of the household model is 1300 mAh, which is enough for 2-3 hours. Professional equipment requires more work time. And the master who uses the screwdriver throughout the working day, it is worth purchasing a model from batteries of 1.5–2.0 Ah.

Features of choice

When choosing power, it is worth taking into account not only what power of the electrical screwdriver is indicated in the information from the manufacturer. Due to too much performance, the device can tighten the screws too strongly, pressing their hat to the surface. As a result, the appearance of the coating spoils, and the fasteners, if necessary, is almost impossible to unscrew.

When choosing which voltage is better for an electric screwdriver, it should be borne in mind that the voltage is the main parameter of the device. So, for example, the power of the Makita DDF343SHE electric screwdriver engine is 700 W, at a voltage of 14.4V and a battery capacity of 1300 mAh and a rotating moment 36 nm. While the other Hammer ACD182 model has a weaker engine (22 nm) and not such a capacious battery (1200 mAh). And it seems that this device is about 40% weaker. However, due to the voltage of 18 in Hammer, he is able to tighten more fasteners without recharging, even yielding to the competitor in the capacity of the battery.

Understand why a less productive at first glance the screwdriver is inferior to a more powerful one, you can, having made a small calculation:

In the process of choosing a screwdriver, it is advisable to take into account the presence of a spare battery in the kit for it. Some models have even 2 additional batteries. On the one hand, such a set will cost more (especially since the cost of the battery is up to 80% of the equipment price), but it will be much more convenient to work with it. At the same time, an additional battery does not need an additional battery. The time performed with its help rarely exceeds 1-2 hours. Whereas in the process of constant use of a screwdriver (for example, for repair work or furniture assembly), the second battery allows you not to interrupt the work longer than a few minutes. The discharged battery is placed on charging, and the spare is installed in the device.

Summarizing

Summing up the article, it is worth noting that the power of the battery of an electric screwdriver, although it is an important parameter when choosing a suitable model, is much more important than voltage and capacitance indicators. And paying attention to the torque is most often worth only if it is with its help not only screwing, but also drilling. You should also know that the maximum power of the electrical screwdriver of the battery of all models available for the device with a voltage of 36 V, a moment of 60 nm and a capacity of 3000 mAh. Such equipment is quite difficult and not too convenient to use without professional experience. And, therefore, it is worth choosing on less productive options produced by well.Known and reliable brands such as Bosch, Hitachi, Makita, AEG, DEWALT and METABO.

In this article, we would like to touch on the topic of choosing an electric screwdriver, more details to make out their types and, of course, the technical characteristics that you should pay attention to when buying this type of tool in order to expandly answer a question that has recently arisen, namely, namely, namely, namely, namely. How to choose an electric screwdriver for home, cottage or work.

Area of ​​application of electric screwdriver

  • Twisting/unscrewing self.Tapping screws, screws, bolts and other fasteners
  • Drilling holes in wood, metal and brick
  • Stiring building mixtures and paints
  • Drilling holes for winter ice fishing

Types of screwdrivers:

A huge number of screwdrivers are represented on the market, different in parameters and manufacturers. They are divided into professional and domestic, depending on the nutrient element, the size of the cartridge, power, a number of additional functions, a set of delivery and price. This division, however, is inherent in almost any tool.

First, we will analyze the division according to the nutritional element. Two types can be distinguished: battery (Li-Ion, Ni-CD, Ni-MH) and electric, we will talk more about each of them below.

Li-Ion batteries

The most modern and most common, today, type of batteries, not only in screwdrivers, but also in many other tools (as well as in portable devices that we all use with you). Modern Li-Ion batteries are designed for three thousand cycles. The battery has a small weight and is quickly charged, in addition, it does not have a charge to charge.

The main disadvantages are: the shelf life of the battery, which is three years, the need for constant use, to obtain maximum return and a significant cost.

Ni-CD batteries

Appeared on the market for a long time, finding use in many tools, not only in screwdrivers. Designed for one and a half thousand cycles charge-discharge. The shelf life of such batteries is five years, there is also the possibility of working in the cold, at temperatures before.15 degrees and very important for an ordinary buyer, the lowest price of all types of batteries.

Negative moments of this type of batteries are quite long, in time, the charging process (at best is an hour), the presence of memory for the charge and the significant weight of the battery.

NI-MH batteries

At its core, one between Li-Ion and Ni-CD batteries. Are found in screwdrivers much less often than the above types of batteries. The number of cycles of the charge-discharge varies about a thousand. It practically has no memory for the charge, and has a minimum self.Discharge among all types of batteries. Of the minuses, one cannot fail to note the weight.

All batteries differ in the capacity and voltage of the battery.

The capacity is measured in amperes multiplied by an hour (Ach). The larger this indicator, the greater the battery can carry the charge, respectively, the larger amount of work will be carried out on a fully charged battery.

The voltage of the battery is measured in (volts). The power that can be obtained from an electric screwdriver working on these batteries depends on this indicator. Simply put, the voltage of batteries directly affects the maximum possible indicators of the soft and cruel torque, which we will talk about below.

Network screwdrivers

Very similar to a drill (do not miss the article “How to choose a drill”). The main difference is the availability of torque adjustment. The models of this type of screwdrivers are represented only by several manufacturers of the household class tool. Eminent manufacturers focus on professional screwdrivers for drywall work, the cartridge of which begins the rotation of the bit only after “drowning” it into the material.

Network screwdrivers are suitable for one.Time homework or for professional use in repair and construction. Based on the situation, the lack of need for charging can be considered a plus. Restrictions created by the need for an electric network, low mobility and wires confused underfoot, definitely the main disadvantages of this tool.

Cartridges and gearboxes

Screwdrivers are both with a fast.Packed three.Cubed cartridge (snap click range from 0.5 to 13 mm), and with a hexagonal landing place for equipment with a shank of 1/4 inches. The fast.Packed cartridge is more practical and allows you to use any, suitable in diameter, equipment. Of course, the larger the diameter of the cartridge, the more universal the electric screwdriver.

The hexagonal cartridge is convenient if necessary to change the equipment and when working in hard.To.Reach places. To drill such an electric screwdriver, it is necessary to use drill with a hexagonal shank. It is possible to install a conventional cartridge with a hexagonal shank.

The rotation from the engine to the cartridge is transmitted by means of the gearbox. Gears inside the gearbox can be made of metal or plastic. Metal gears are most characteristic of powerful professional screwdrivers models.

No need to overestimate: buying a household electrical screwdriver for professional work

An electric screwdriver can work from a network or from a built.In battery. Not only the mobility of the tool depends on the type of power, but also its power. A small and convenient battery tool is the best assistant for a home master. He has all the necessary functions, and he weighs quite a bit, and his hands do not get tired. But the main minus of the battery electrical screwdriver. Low.Power. Will play an angry joke with those who plan to use it as a professional tool. That is, a lot and often. For pro. You need a completely different power. The price of professional above. Most often it is attached to the outlet, but tolerates intense loads well.

The battery is the most expensive part of the tool. You pay more than half the price for the battery. In order not to run every 20-30 minutes with a battery of an electric screwdriver to the outlet for recharging, read the battery passport. We recommend attentive to such parameters.

The main parameters of the battery and the tool itself

The main of the parameters that characterize the work of the screwdriver is the voltage of the battery, on which, in turn, the power of the electric motor and torque depends. For household models, the difference between screwdrivers in voltage is small. On average, it is in the range of 10.8–14.4 V. Productive options designed for constant use can be equipped with 24–36 volts batteries.

The voltage of the battery of the electric screwdriver and the type of battery. Answer what the difference is, you can, knowing what metals were used for its manufacture. For nickel-cadmium batteries, large in size with a similar capacity, the value of the indicator is a multiple of 1.2 V (it is the voltage of one element that is composed of a battery block), for lithium-ion-3.6 V of lithium-ion.

Among other, no less important characteristics can be noted:

  • The power of the electric screwdriver, by which it is also possible to determine the speed of twisting of screws and self.Tapping screws. To carry out repairs on their own, there are enough models with a capacity of 500-700 watts. Professional repairman will need more powerful equipment-800–850 W;
  • The number of revolutions of the rotating part of the device per unit time. According to this parameter, it is determined whether the screwdriver can fulfill the task set before it. For example, to tighten the desired type of fastener. So, for the bolt, self.Tapping screw and screws, 500 rpm will be enough, for drilling it will be needed already 1,200 rpm;
  • Twisting the moment, the value of which can be one of the main answers to the question of what the voltage of the battery of an electric screwdriver affects. By this characteristic, you can determine both the diameter and the length of the twisted screw or self.Tapping screw. For large fasteners, as well as for drilling deep and wide holes, and for solid materials, a serious value of the rotating moment is also required. The maximum value of the indicator is 10-60 nm.

There are two types of torque of screwdrivers. Starting (larger in size and required to launch the device to work) and constant, that is, a worker. The value of the parameter in modern equipment models can be adjusted. Find out how many modes can be selected from a particular device, you can find out in the documentation available on it. Over, in tools with a pulsed mode of operation (turning on the rotating part with jerks) the capabilities of screwing more. Allowing to periodically increase the torque, they can screw a larger screw.

The issued torque value of the electric motors does not constantly and depends, first of all, on the speed of the motor, the higher the speed, the lower the moment on the shaft.

In addition to the voltage of electric screwdriver and its power, the battery capacity should also be evaluated. The characteristic is measured in ampere hours or milliampere hours. The larger the indicator, the longer the screwdriver can work out without recharging.

The average battery capacity of the household model is 1300 mAh, which is enough for 2-3 hours. Professional equipment requires more work time. And the master who uses the screwdriver throughout the working day, it is worth purchasing a model from batteries of 1.5–2.0 Ah.

How to choose an electric screwdriver: all secrets and nuances

And again on the pages of our site I welcome you, Kuzmich!

Today I propose to consider a universal and, perhaps, one of the most necessary tools on the farm, is an electric screwdriver. And accept my, I hope, useful for many, tips for choosing this home “workhorse”.

I call this electrical appliance universal because it combines at least two functions. A drill and an electric screwdriver. You can not only quickly (compared to a screwdriver) twist or unscrew self-tapping screws, bolts, screws, but also drill small holes, both in wood and in metal, it is especially convenient to do in places inaccessible, since the drill-spaces, mostly, in the majority its own, battery, mobile. Although, if desired and not very frequent use, you can buy a network tool.

You ask what are the features of an electrical screwdriver, unlike a drill?

Electric screwdriver, which masters are sometimes used as a drill, still differs from a classical drill. He has a lower spindle rotation speed, providing a high torque, and the design is such that it provides for an object of reverse.

In addition, an electric screwdriver is safer in operation than a drill, a special mechanism (a branch of the coupling) is laid in it, which stops the cartridge when the resistance becomes too high. At the same time, the effort with this coupling can be adjusted (on the rim in front of the cartridge you can see numbers). The denser the material where you screw the self.Tapping screw, the higher we choose the number.

If you are not indifferent to all kinds of new products and modern developments, I advise you to purchase models of screwdrivers with illuminating the place of work not with an ordinary light bulb, but by LEDs that last more and last longer. Когда светодиод расположен на нижней части рукоятки, то рабочая поверхность освещается более полно. A tool equipped with a shock mechanism, a two- or three-speed gearbox will allow you to work no worse than a real drill.

What other parameters are important when choosing?

Having determined what kind of tool you need. Professional or household. Take into account my next advice: study immediately before buying information about the power and revolutions of the electric screwdriver. This will save you from acquiring the device with the parameters unnecessary in size, and, therefore, from additional expenses.

Snapfresh Electric Insulated Cordless Screwdriver

The power of the electric screwdriver is determined by such an indicator as the torque measured in N ∙ m (Newton per meter). Naturally, the larger the number, the more powerful it is. If you use the device in simple household works, it will be from 15 to 40 n ∙ m, for example, for the assembly of furniture-30 N ∙ m, and already for roofing or work with metal-40-50 N ∙ m. Professionals will not interfere with the torque and 80-100 N ∙ m.

As for the number of revolutions, the screwdrivers can be both one- and two-speed, designed for the home, and three-four-speed for construction purposes. The most popular are two.Speed, on the upper part of which you can see the switch to two positions. If there is no such switch, you have a single-speed electric screwdriver, which gives 500-600 rpm maximum, and 2 speed-speed-1300-1500 rpm.

You are probably heard about the batteries, since they are the same for all power tools and are divided into three types: nickel-cadmium (NI-CD), nickel-metallogid (NIMH) and lithium-ion (Li-Ion). About the first two briefly. These are simple and cheap versions, we must pay tribute to them, they served well, especially when there was no alternative. But today, manufacturers are moving away from old technologies in favor of LI-Ak-accumulators, which take into account and fixed all the shortcomings of previous batteries.

Now each of the manufacturers of screwdrivers has models with a LI-a-account, in which there is no self-discharge, as well as the “memory effect”, which extended his service to 5-6, and sometimes up to 8 years. Such a battery is compact, its weight is less, toxicity has disappeared, that is, it is not harmful to the environment. It is quickly charged (30-60 minutes.) and does not lose power during operation.

The larger the capacity of such devices, the longer the electric screwdriver is operating on one recharging. With measured operation at home or in the country, you are quite enough for a capacity of 1.5 A ∙ h. In professional tools (Makita, Metabo, Hitachi, etc. P.) the capacity can reach 3-4 A ∙ h, but along with the capacity, the cost also increases, which, however, corresponds to the quality.

How different models of screwdrivers are different, what additional functions have?

In addition to the general parameters that I told you about, models of screwdrivers of different manufacturers have their own specific features.

What to pay attention to first of all? Well, of course, to the manufacturer: you are not mistaken with the choice, giving preference to well.Known, perfectly proven brands, such as AEG, Bosch (Germany), Dewalt (USA), Interskol (Russia).

I think that it is very important in the work of which cartridge this or that model of the tool is equipped. One.Way fast.Packed cartridge allows you to change the nozzles with one hand, which is very convenient (unlike a two.Moft cartridge). You can only determine the diameter of the nozzles, which is in the range from 1 to 10 mm for the household appliance for the household appliance.

It is also very convenient if the electrical screwdriver has an option. The charge level indicator. To find out the residual capacity. It can be placed directly on an electric screwdriver or on the battery. Models differ in their ergonomic data, so choose a tool convenient for yourself, hold it in your hands.

We will consider other additional functions and amenities using several specific models of the most popular screwdrivers.

AEG BS BS 12 C2 LI-152BF battery-range electric booty boat, designed to work with fasteners and drilling different materials, is equipped with a 12-volt Li-Ion-Accumulator, which provides all day of intensive work on one recharging. A special drilling mode has been added to 16 modes of torque. The model is light and ergonomic, with a rubberized handle, is equipped with a set of nozzles and drills, a bright construction flashlight, a soft case.

Choosing an electric screwdriver: overview of models, capacities and batteries

Every business man must have tools in his arsenal, including an electric screwdriver, which cannot be dispensed with during construction or small housework. This power tool will be required for screwing and turning screws, screws and screws.

The modern market offers all kinds of models of good screwdrivers, which are distinguished by functions and technical characteristics. It is extremely difficult to choose the best option, because buying the most expensive one does not mean to fully satisfy the need. So how do you choose the best model?

The purpose of the electric screwdriver consists in twisting and twisting, drilling holes in a tree, metal and brick. In addition, the tool can be used to assemble furniture, mixing building mixes, paints or when drilling holes for fishing.

Selection of electrical screwdriver by parameters

For the unmistakable acquisition of the power tool, it is necessary to pay attention to the following parameters:

  • Brand and price. The world leaders are Bosch, AEG, DEWALT, METABO and SpARKY (Germany), Makita and Hitachi (Japan), Hilti (Liechtenstein), Black Decker (USA), Interskol and Zubra (Russia), Skil (Netherlands).

Many of the above firms produce their products in China, which does not affect their quality. Bosch is very popular with our men, thanks to durable work. All other German and Japanese brands have approximately the same operational parameters and cost.

Makita is a good option for the ratio of price and quality. American instruments are rarely found in the domestic market, because their cost is higher than other similar products.

  • Dimensions and shape. In this case, compactness matters, small models are suitable for homework, but for frequent work with a tree it is better to give preference to big.

Before buying, it is advisable to hold the tool in the hand.

Important! The right angle between the handle and the body of an electric screwdriver can cause corns.

  • Nickel.Cadmium (nicd). Affordable cost, frost resistance and the possibility of storage in discharged state. Ideal for periodic work.
  • Nickel-metal-gidrid (NIMH) is a compact harmless device that is not in demand due to a short service life.
  • Lithium-ion (Li-Ion)-have a high capacity, practically do not discharge, quickly produce a charge and at the same time serve much longer than previous options. They are universal, differ in high cost and intolerance to excessively low temperatures.

There are models working on batteries, that is, complete with an electric screwdriver there is an additional battery, which is replaced in case of category. After all, buying a new model is more expensive than just replacing the battery.

How to choose a battery electric screwdriver for home and professional use

Regardless of where the tool will be operated, it is necessary to decide which types of work it will face. For infrequent use, about a couple of times a month, there is enough simple electric screwdriver working on an inexpensive battery.

Budget models have all the necessary functions for small housework, while they weigh much less than professional.

Bosch DIY Cordless Screwdriver: IXO 5

For daily use, it is better to give preference to powerful options that have impressive sizes and weight. Such models can be both impulse and network. They can easily cope with a large volume of work.

How to determine the power of an electric screwdriver

The power of the tool depends on the battery voltage. That is, it is equal to the work of voltage and current strength. If anything affects the voltage, it is on the power of the device.

Today on the market you can find batteries 6, 12, 18, 24 and 36 volts, their values ​​are indicated on the finished product.

Naturally, when the figures are increased, the dimensions of the electric screwdriver are growing and the price for it. The growth of value affects the use of the tool. Therefore, the higher the “voltage”, the more it is suitable for professionals.

How to choose a powerful battery electric screwdriver

In addition to the value of “voltage” and “steering”, screwdrivers are classified according to the indicator of torque. It can be soft and hard.

The first is characterized by the maximum effort, which is calculated in newton meters (n.M.) for screwing and twisting, and the speed of rotation can reach 350 revolutions per minute. The purpose of the second is drilling, the speed of rotation is more than 1000 revolutions.

As in the case of the TT and Volt indicator, the turns affect the power. Thus, 25-30 N.M. Suitable for self.Tapping screws less than 7 cm, and for large sizes. 40 N.M. For screws longer than 10 centimeters, it will require drilling the hole for him in advance.

Different types of screwdrivers (drills) are presented on the modern market. To select the tool that is suitable for you, you need to decide on the goals of operation, then understand which power will be enough for a particular work. It is also important to deal with the financial component, because the type of battery and brand depends on it. Additionally, the tool can have a speed switch, backlight or other beneficial functions that will make work easier and faster.

The choice of electric screwdriver

Electric screwdriver is one of the most popular tools in any house. It is needed not only during construction work or repair, but also in domestic cases, which often arise. It is worth only several times to encounter a cabinet or replacing the lock, it becomes clear that an electric screwdriver is needed. And then the question arises: how to make a choice of electric screwdriver? The assortment range today is very wide, but how to find an optimal tool? It is necessary to pay attention to the main characteristics of the screwdrivers.

Scheme of professional battery electrical screwdriver.

Rotation frequency and torque

Important parameters are the frequency of rotation and torque. If we use in household situations, then there is enough tool that has a maximum torque of 10-15 nm, which provides the opportunity to tighten sufficiently tight self-tapping screws. This tool with a large torque is considered universal, because it makes it possible to perform the function of drilling solid materials. Twisting the moment in professional screwdrivers can reach about 130 nm.

Charger diagram for the battery.

Next, you need to pay attention to the gearbox. This element will ensure the rotation of the working shaft of this tool with a certain angular velocity. To screw, 500 rpm is enough, for convenient drilling-1200-1500 rpm. Often, a planetary gearbox with plastic gear sites is mounted in battery screwdrivers.

To protect the engine, all modern couplings are equipped with rattles or the ability to slip when the load is more than a dangerous threshold. Often this restriction, called the maximum torque, is 5-10 nm, which is enough to twist very tight screws and to protect the engine from overload. Huge threshold values ​​will be suitable only for drilling solid materials or large diameter holes.

Tools with a large torque are universal, with their help you can drill and twist screws.

A tool with a small torque is best used only for drilling soft materials.

In addition to torque, it is necessary to pay attention to the operation of the engine under load, whether it holds the momentum and whether it will give a sufficient power when a discharging battery. But it is quite difficult to find out, and they often do it experimentally. If a drill is purchased in a professional store, then it often has a test stand on which you can try an electric screwdriver in the case: drill several holes or tighten a couple of screws.

Regarding the speed of rotation, then it is necessary to take into account 2 points. For wrapping screws, a speed of 400-500 about./min. For normal drilling, it will take at least 1200-1300 about./min. High rotation speeds are necessary for specific situations.

A very useful characteristic is the adjustment of the speed of the engine rotation. Almost all modern models can do this. This function will come in handy when they begin to drill a hole. Because the slower the drill rotates, the more accurately the hole can be positioned and less the likelihood that the drill may jump.

Another useful characteristic is reverse (reverse move). With his help, you can not only free the stuck drill, but also unscrew the tight screw.

power, electric, screwdriver, depends, battery

Professional electric screwdriver or household?

Scurry screwdriver test schedule for screw.

During the choice, the question arises, to purchase a professional electric screwdriver or household. The main differences are in power, as well as the time of continuous operation of the tool before recharging. In households, these 2 indicators are much smaller, but with ordinary cases, household screwdrivers can cope without any problems. And their cost, respectively, is much cheaper. Professional electric screwdriver makes sense to acquire if there is a firm confidence that you have to face heavy loads.

Obviously, a professional electric screwdriver should work hard and withstand huge loads, so it is made of more durable and more expensive materials, and the most important thing is equipped with a more powerful battery. Often in professional models, voltage from 18 V is used.

Household models have much less cost, and they have enough quality to perform periodically arising home tasks. In such models, a voltage of 9.6-14.4 V is most often used.

power, electric, screwdriver, depends, battery

Not paying attention to the fact that household screwdrivers differs from professional power models, they can safely cope with almost all tasks. One of the main differences in household electrical screwdriver and professional is the time of continuous work without recharging the battery.

Types of bit for electrical screwdriver: 1. Flat slot; 2. PH (Philips); 3. Pz (Pozidrive); 4. Hexagon (HEX); 5. Asterisk (Torx).

To date, the most widespread nickel-metall-hydride batteries (NI-MH). Nickel-cadmium batteries (Ni-CD) contains toxic materials and a sufficiently strong allergen-cadmium. A lot of Ni-CD batteries allow up to 1000 charges, and Ni-MH batteries can be recharged about 500 times. Advanced models of screwdrivers and charging devices can support 2 type of batteries. You need to pay attention to this fact during the purchase!

Nickel-metall-hydride batteries have smaller dimensions, but they do not withstand large currents and are very sensitive to low temperatures. But this should not be stopped with the exception of situations where there are a lot and often need to work at low temperatures.

Another type of batteries is lithium (Li-ion). They are the most powerful compared to nickel batteries, moreover, they do not have a memory effect. But lithium batteries tolerate low temperatures even worse. To date, they occupy a small market segment.

Regarding the effect of memory. This effect comes down to this. With each charge of the battery, only if it is not completely discharged, its capacity is lost. It is difficult to get used to the fact that the battery must be discharged completely before charging.

power, electric, screwdriver, depends, battery

The accumulation and consumption scheme of electrical energy in the charger.

power, electric, screwdriver, depends, battery

The larger the battery capacity, the longer it will work before recharging. Professional and semi.Professional screwdrivers are most often equipped with 2 batteries: 1 is installed directly in an electric screwdriver, and the second is charged. With this configuration, working with a battery electric screwdriver practically does not differ from working with network, since in this case the time of charge of the spare battery will not be higher than the discharge time of the working battery.

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