When carrying out repair, installation and dismantling work, where threaded connections act as fasteners, an electric wrench has a number of advantages over using ordinary wrenches. Among them are high productivity, the ability to cope with complex bolted connections that require high tightening forces, as well as unscrewing stuck nuts. Electric options, compared to the same hydraulic or pneumatic counterparts, are more mobile, compact and light.

How to choose an electric wrench

The tool market offers a wide range of electric impact wrenches, both domestic and professional, each with unique specifications and features. Based on them, you should select the device for specific tasks.

Nutrition

Each electric impact wrench falls into one of the following categories by power type:

  • Network – powered by a household network.
  • Rechargeable – powered by a built-in or removable battery.
  • 12-volt – powered by a 12-volt DC source, such as a car cigarette lighter or battery.

The tool of the first group surpasses the other two in power, but among the battery options there are also productive models, and their main advantage is independence from the network. 12-volt wrenches are also called automotive, since their main purpose is the installation and dismantling of wheel fasteners for passenger vehicles.

Purpose

By purpose, the tool is divided into:

  • Household – small lightweight wrenches, not designed for continuous continuous operation.
  • Professional – designed specifically for continuous operation in harsh conditions. As a rule, this is a powerful productive tool.
  • Specialized – designed for specific tasks. An example is rolling models for tire fitting of trucks and special equipment.

Power

The more powerful the electric wrench motor, the more complex fasteners it can handle. For example, to remove the wheel of a car, you need a device with a power of about 350 watts. At the same time, for truck tire fitting or when assembling metal structures, a wrench will be required, the engine of which is capable of delivering more than 1 kW.

Torque

Perhaps this is one of the main indicators that you should focus on when choosing an electric wrench. An excessively high torque can damage the fastener, while too low a torque simply will not tighten the nut or bolt to the rated torque. For household models, the parameter ranges from 100 to 300 Nm, while a production tool transmits more than 500 Nm of torque to the spindle.

Spindle speed

The parameter completely determines the performance of the wrench. The faster the spindle rotates, the faster the work is done. The tool for auto repair shops and manufacturing enterprises has a spindle speed of 1.5-3.2 thousand revolutions per minute.

Impact mechanism

Its presence greatly simplifies the unscrewing of an overtightened or stuck fastener. In addition, the percussion mechanism allows you to tighten this fastener more efficiently. Between impact and non-impact models of wrenches, you should choose the first.

Additional functions

Each of the additions increases the cost of the tool, which means that when choosing, you should decide in advance whether each specific item is needed in the work. At the same time, additional options make the job easier. The most popular add-ons include:

  • electronic speed control system;
  • electronic brake;
  • illumination of the working area;
  • torque control.

Also, wrenches are selected taking into account their design. In addition to classic straight lines, there are corner models designed to work with fasteners in confined spaces.

best electric impact wrench

Corded wrench Makita TW-350 – a great solution for car services. This impact model has a power of 400 W and is capable of spinning the spindle up to a speed of 2 thousand rpm. In addition, the developers have equipped the wrench with an electronic speed control system and a reverse function. The maximum tightening torque for fasteners is 350 Nm. The durability and reliability of the model is due to the shock-resistant case with an ergonomic rubberized handle, as well as a metal gearbox protected by a special rubber gasket. The impact mechanism provides 2 thousand blows per minute, which allows you to unscrew even the most complex bolts and nuts.

This electric impact wrench is equipped with a friction ring chuck for quick and easy tool changes. In addition to the tool itself, the package includes a socket wrench and a case for storage and transportation.

Characteristics

  • Type – direct, shock, network.
  • Power – 0.4 kW.
  • Torque – 350 Nm.
  • Turnovers – 2 thousand rpm.
  • The frequency of strokes is 2 thousand beats / min.
  • Cartridge: type – ½”, diameter – 12.7 mm.
  • The presence of a reverse – is.
  • Speed ​​control is electronic.
  • Weight – 2.9 kg.

pros

  • comfortable handle;
  • high power;
  • great tool for car service needs.

Minuses

  • the weight of the tool can make it difficult to move.

best car electric wrench

Automotive wrench Autolux AL-1304 powered by a cigarette lighter – a reliable assistant to a car enthusiast both on the road and in the garage. The robust ABS housing houses a powerful motor that transmits a torque of 340 Nm to the spindle. The model has a convenient two-position start key, which is also responsible for the direction of rotation of the shaft. In addition, weighing only 1.6 kg, the tool is equipped with an impact mechanism that allows you to tighten the wheel nuts of a passenger car with sufficient force.

During operation, the device consumes 10 A of current, and its main drawback is the impossibility of continuous operation without stopping. After 10 minutes of operation, the wrench will overheat and may fail. The model is completed with a plastic case for storage and transportation, which does not take up much space in the trunk of a car.

Characteristics

  • Type – direct, shock, power supply 12 V.
  • Power – 175 watts.
  • Torque – 340 Nm.
  • Cartridge: type – ½”.
  • The presence of a reverse – is.

pros

  • work from the cigarette lighter;
  • the weight;
  • price;
  • the presence of a percussion mechanism;
  • the presence of a case;
  • Russian-language instruction.

Minuses

  • wire length is often not enough;
  • the duration of the work should not exceed 10 minutes.

The best professional electric wrench

Shock-impulse network model Hitachi WR22SA refers to the professional grade wrenches. The tool is equipped with a ¾” square chuck and works with a wide range of fastener sizes: from M14 to M24. The whole structure has increased strength and wear resistance due to the use of metal in the manufacture of the case and high-quality filling. For convenience of work the handle is equipped with a rubber overlay. Particular attention should be paid to the two-position start key, by pressing the upper or lower part of which the direction of rotation of the spindle is switched.

The Hitachi professional impact wrench has a power of 850 W and is capable of developing a torque of 610 Nm at a maximum speed of 1800 rpm. To hold a rather weighty tool, an additional handle is included in the package, made in the form of a side grip.

Characteristics

  • Type – direct, shock, network.
  • Power – 0.85 kW.
  • Torque – 610 Nm.
  • Turnovers – 1.8 thousand rpm.
  • The frequency of strokes is 2 thousand beats / min.
  • Cartridge: type – ¾”, diameter – 19.5 mm.
  • The presence of a reverse – is.
  • Weight – 5 kg.

pros

  • assembly, ergonomics;
  • performance and reliability;
  • changing the direction of rotation with a two-position trigger.

Minuses

  • during intensive use, the mechanism may overheat.

The best electric jack wrench

Motorist kit Kraft, including a rhombic-type jack with an electric drive and an electric wrench – a good help to a hand tool when changing the wheels of a car. The jack itself is equipped with an independent electric motor and is equipped with a handle for mechanical lifting. The control is carried out by a remote control, on the body of which there is a flashlight.

As for the screwdriver, it produces 340 Nm of torque on the spindle, which is quite enough to work with car wheel fasteners. The connection is made both to the cigarette lighter and directly to the battery terminals due to an adapter with the appropriate clamps. The whole set fits into a case, easily fits in the trunk.

Characteristics

  • Type – a set of jack wrench.
  • Torque – 340 Nm.
  • The lifting capacity of the jack is 2 tons, the type is rhombic.
  • Weight – 7.42 kg.

pros

  • work from the cigarette lighter;
  • 2 heads included (17-19 and 21-23);
  • the ability to connect to a car battery.

Minuses

  • Chinese production;
  • price.

The best cargo electric wrench

Extremely powerful networking tool Makita TW1000 professional grade designed for intensive work under high loads. The direct purpose of the model is industrial work, which means that it is able to cope with the fasteners of freight transport without difficulty. All the high-performance stuffing of the wrench is hidden in a durable case. The impact mechanism and gearbox, developing a spindle speed of 1400 rpm, issuing 1000 Nm of torque, are covered with an aluminum protective casing. Overheating is eliminated thanks to the same aluminum, which has a high thermal conductivity.

Among the differences between the model and analogues, ease of maintenance stands out, since the carbon brushes can be accessed from the outside. The weight of the tool exceeds 8 kg, but the developers managed to achieve a good balance to compensate for this shortcoming. In addition, the wrench is equipped with a side handle that can be locked in any position. The main handle has a rubber coating. The package includes a plastic case for storage and transportation.

Characteristics

  • Type – direct, shock, network.
  • Power – 1.3 kW.
  • Torque – 1 thousand Nm.
  • Turnovers – 1.4 thousand rpm.
  • The frequency of strokes is 1.5 thousand beats / min.
  • Cartridge: type – 1″, diameter – 25.4 mm.
  • The presence of a reverse – is.
  • Weight – 8.4 kg.

pros

  • power and torque;
  • additional handle;
  • quick replacement of carbon brushes;
  • there is a reverse function;
  • reliable and durable.

Minuses

  • the weight;
  • short power cord;
  • no carrying strap.

best electric angle wrench

Compact angle tool Makita TL065DZ battery-powered ensures efficient work with fasteners in the most inaccessible places. With its small dimensions, and most importantly, its weight, which is only 1.6 kg, it has not the smallest torque of 60 Nm. The model is able to work with nuts and bolts up to size M12. In low light, the situation is saved by the built-in illumination of the workspace, which continues to work after the start button is released.

The wide functionality of the model is confirmed by the presence of a reverse function, an electronic speed control system and an electric motor brake. The 10.8V Li-Ion battery provides long runtime. The battery is also compatible with other Makita cordless tools using the same voltage. This means that if you have such a tool, it is not necessary to buy a battery for the wrench, given that it is not included in the delivery set.

Characteristics

  • Type – angular, impact, battery.
  • Torque – 60 Nm.
  • Turnovers – 2 thousand rpm.
  • The frequency of strokes is 3 thousand beats / min.
  • Cartridge: type – 3/8″.
  • The presence of a reverse – is.
  • Speed ​​control is electronic.
  • Power parameters: battery type – Li-Ion, voltage – 10.8 V.
  • Weight – 1.6 kg.

pros

  • the weight;
  • illumination of the workspace;
  • battery compatibility with other manufacturer’s tools;
  • lack of vibration;
  • ergonomics.

Minuses

  • battery not included;
  • cartridge size is not the most common.

The best electric torque wrench

ZUBR ZGUE-350 – tool with adjustable tightening torque. The gearbox housing is made of aluminum, equipped with external holes, which makes it easy to replace the brushes that come with the package. The presence of a two-position start key allows you to change the direction of rotation of the spindle without taking your hand off the handle. An electric motor of not the highest power – 350 W – allows you to give the gearbox a torque of 300 Nm and provides a spindle speed of up to the classic 2 thousand rpm. Reliable impact mechanism produces 3 thousand beats per minute.

For ease of use, the model is equipped with an ergonomic handle with rubber anti-slip pads, and a 5-meter power cord eliminates the need for extension cords. You will have to buy a case for storage and transportation separately, as the tool comes in a cardboard box.

Characteristics

  • Type – direct, shock, network.
  • Power – 350 watts.
  • Torque – 300 Nm.
  • Turnovers – 2 thousand rpm.
  • The frequency of strokes is 3 thousand beats / min.
  • Cartridge: type – ½”, diameter – 12.7 mm.
  • The presence of a reverse – is.
  • Speed ​​control is electronic.
  • Weight – 3.15 kg.

pros

  • price;
  • warranty – 5 years;
  • common type of cartridge;
  • long network cable;
  • spare brushes included.

Minuses

  • the weight;
  • absence of a case;
  • noisy gearbox (fixed by applying additional lubricant after purchase).

best 12 volt electric wrench

Compact yet powerful impact wrench BORT BSR-12 powered by 12V DC. The model is not designed for serious loads, but due to its characteristics it is one of the best solutions for motorists. You can power the device both from the terminals of a car battery, and from a cigarette lighter, and even from a 12-volt line of a computer power supply of suitable power. A torque of 350 Nm will be enough to unscrew and tighten the wheel nuts of cars.

At such a low price, there were some drawbacks. We are talking about poor-quality lubrication of components from the factory. For this reason, after purchase, it is recommended to disassemble the wrench and apply additional lubricant to the rotating parts in contact with each other. Another disadvantage is the length of the power wires. Sometimes it is not enough, so you should additionally increase one and a half to two meters.

Characteristics

  • Type – direct, impact, powered by 12 V.
  • Torque – 350 Nm.
  • Turnovers – 3.3 thousand rpm.
  • Cartridge: type – 1/2”.
  • The presence of a reverse – is.
  • Weight – 1.4 kg.

pros

  • price and power;
  • weight and size;
  • 12-volt universal DC power supply;
  • case included.

Minuses

  • the quality of the lubrication of the elements;
  • short wires.

An electric wrench greatly facilitates the process of working with threaded fasteners. Powerful models designed for industrial operating conditions are completely indispensable if you need to unscrew or tighten, for example, a large diameter nut. When buying a tool you like, you should make sure that the size of the shaft matches the socket heads, and vice versa.

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