The organization of our own service station demanded the purchase of high-quality tools and equipment. I never expected the choice of auto repair tools to be so difficult. The selection of electric impact wrenches was especially troublesome, the proposals were so diverse. I studied the best electric wrenches, looked through the reviews about them and now I offer you the instructions for choosing and my personal rating. 4 best electric impact wrenches.
CONTENT
- 1 Purpose and device of nutrunners
- 2 Choosing an electric wrench: what to look for
- 3 Top 4 Electric Impact Wrenches
- 4 FAQ
Purpose and device of nutrunners
An improved version of the wrench, the wrench is used to tighten and unscrew fasteners, in particular nuts. It is used in manufacturing and repair facilities, in everyday life - wherever you need quick and frequent work with nuts and other fasteners.
The seat for the nut is a square (on the working side) spindle (chuck). The shank is driven by an electric motor through a gearbox. These elements are installed inside a common housing. Many models are equipped with a second spring that allows the chuck to rotate in the opposite direction. The reversing option allows you to loosen the nuts, so it is considered extremely useful.
Manufacturers offer shock (impulse) and shockless models. In impact wrenches, the rotational movement of the head is transformed into rotational jerks by an impact device. The quality and design of this impact sleeve largely determines the reliability and price of such a tool. Even with low power, models of this type create a large torque.
Shockless models with the same power have less torque, they are usually used in everyday life. Pulse ones are used in professional activities, they are more expensive than rotational ones.
Unscrewing and screwing at high speed is not always permissible. Where there are restrictions, shockless models are used, as well as tools in which the shock clutch can be disabled. In some models, speed regulation is possible.
Choosing an electric wrench: what to look for
It is necessary to select a model of an electric wrench to perform specific tasks. Only in this case will he effectively perform his functions. When choosing, you should especially carefully inquire about the main characteristics, including:
- Power. The functionality of the tool largely depends on it. The more power, the more possibilities the impact wrench can have. For professional tools, the power value reaches 1.2 kW or more. This is enough for working with truck wheels, construction crane attachments.
- Torque. The study of this characteristic should be approached especially carefully. If the tightening of the nuts is stronger than necessary, then it is quite possible that the thread breaks, the wrench breaks. If the effort is not enough, then the nut will remain unscrewed or unscrewed.
- Speed. This figure can go up to 3000 rpm. Professional tools have the highest number of revolutions; 40-100 rpm is enough for household needs. In percussion models, the maximum possible number of revolutions is caused by the largest number of impacts. The higher the number of impacts, the less vibration of the instrument will be.
- Chuck type. The chuck spindle can have ½, ¾, 1 inch holes. Some models have a HEX hole in the shank, which makes it possible to use adapters. Additional replaceable cartridges may be included in the package - this is an ideal, albeit rather rare option.
- Type of food. Power to the tool can be supplied from the mains, battery, vehicle electrical system. When choosing a nutrunner for work in a loaded mode, it is better to purchase models with power supply from the mains. At the same time, the cordless impact wrench is comfortable and able to work at any distance from the outlet. Finally, an impact wrench, which is powered by a car battery, can be an indispensable tool for a car enthusiast.
Many models have additional options. Electronic speed control makes it possible to reduce the speed when an obstacle is detected in the work. Emergency brake prevents wrench breakage when it gets stuck
Top 4 Electric Impact Wrenches
Best Freight Electric Impact Wrench
1. BOSCH GDS 24
Impulse wrench is used in professional activities in the construction of pipelines, in boiler construction and mechanical engineering. Equipped with ¾ ”square chuck. It has an additional handle with a thrust disc that allows the tool to be installed in two positions. Equipped with a spring-loaded bracket, the tool can be suspended.
The metal casing is durable, able to withstand vibrations and mechanical stress well. The stop at the end of the main handle prevents the palm from slipping. It features a reverse function, a high torque value (600 Nm), a record high number of beats per minute (3200 bpm). However, with a high cost starting from 65 thousand. rubles, has only one speed and a rather large weight - about 6 kg.
Price: ₽ 64 756
BOSCH GDS 24
Best Electric Impact Wrench
2. Metabo SSW 650
The impact wrench is designed to work in the most difficult conditions. The robust die-cast aluminum gearbox removes heat and extends tool life. Cooling of the heated parts also takes place through the ventilation holes. The five-meter cable length makes it possible to move the instrument from the outlet at decent distances. Product weight - 3 kg.
A smooth change in the number of revolutions is possible thanks to the Variospeed electronics. There is a reverse option. The size of the square chuck is ½ ”. The tool features a high torque (600 Nm) as well as a high idle speed (2100 rpm) and a shock frequency (2800 bpm). With a mass of such advantages, the cost is 25 thousand. rubles does not seem too high, and having only one speed is a serious drawback.
Price: ₽ 25 399
Metabo SSW 650
Best Electric Impact Wrench for Car
3. Makita TW0350
The impact wrench has good torque (350 Nm) and impacts per minute (2000 bpm). Convenience of work is provided by the handle with rubberized pads, good balancing of the product. The gearbox is provided with a reliable metal case and a special rubber pad that protects the tool from dust and moisture.
The size of the square chuck is ½ ”. There is no rotation speed control, but there is a reverse function. The engine compartment cover can be removed to replace the carbon brushes yourself. The disadvantages of a nut runner costing from 16 thousand. rubles can be attributed to a short cord (only 2.5 meters). There is only one speed, but there is an electronic rotation control.
Price: ₽ 16 309
Makita TW0350
Best Domestic Electric Impact Wrench
4. BISON ZGUE-350
The impact tool is used for mounting / dismantling metal structures, removing / installing car wheels and other works. The metal housing protects the gearbox from damage, which at the same time accelerates heat dissipation. You can replace the brushes yourself as the motor section cover is removable. Comfort in work is provided by a balanced body, a handle with non-slip pads, a relatively low weight of 3.1 kg.
The reverse function allows the nuts to be loosened. Extending the radius of work gives a cord with a length of 5 meters. With a cost of only 6.3 thousand. rubles, the domestic wrench is not inferior to foreign counterparts in terms of basic characteristics. The Russian-made tool has decent torque indicators (300 Nm), also the number of revolutions in idle mode (maximum 2000 rpm) and shocks (the manufacturer promises 3000 beats / min). The size of the square chuck is ½ inch, the speed is one, there is an option for electronic rotation control.
Price: ₽ 6 260
BISON ZGUE-350
FAQ
Can the impact wrench be used as a drill?
Professionals recognize the use of impact wrenches as drills inappropriate, since the principles of operation of these tools differ. There is a great risk of drill breakage, poor quality work, damage to expensive tools.