The cordless impact wrench is popular not only among professionals, but also among drivers and DIYers. It allows you to quickly deal with fasteners, it is effective even when working with oxidized bolts and nuts. Wrenches are usually quite compact, lightweight, and a variety of accessories allows the tool to be adapted to a wide range of tasks. How to choose this useful tool and what 4 cordless impact wrenches can be called the best, read this material.
CONTENT
- 1 How to choose a cordless impact wrench
- 2 Rating of the best cordless impact wrenches
- 3 FAQ
How to choose a cordless impact wrench
When choosing a tool, it is worth, first of all, to proceed from the purposes for which it will be used. There are a number of characteristics to consider:
- Range of use;
- The presence of a blow;
- Cartridge type;
- Torque;
- Reverse;
- Battery type and capacity.
Range of application
Wrenches are designed to work with different types of fasteners. For domestic use, a range of 10-12 sizes is optimal, for example M12-M24. Powerful models can handle fasteners up to M42.
The presence of a blow
Wrenches, like drills or screwdrivers, can be impact and non-impact. The price for the former is usually higher, but it tightens the fasteners more reliably. Models are available with different impact rates. For example, 2300 bpm is considered optimal for wheel replacement.
Impact wrenches should be preferred if the tool will be used for:
- Assembly or disassembly of heavy structures;
- Work with oxidized or stuck fasteners;
- Car service.
When working with a non-impact tool, a large load falls on the hand of the master. Such models should be preferred if they will be used for:
- Works with small fasteners;
- Small and infrequent work;
- Assembly and disassembly of lightweight structures.
Chuck type
The spindle of the tool is usually in the form of a hexagon and is designed to work with the following types of bits:
- Clamp type chucks: 1, ¾, ½ inch;
- Low-power household models: ½ inch;
- Powerful tool: 1 or ¾ inch.
Wrenches are usually designed to work with certain fasteners, when buying it is worth reading the instructions.
Torque
One of the most important metrics for this tool. In many ways, it depends on the power. This term refers to the torque transmitted to the movable element. This characteristic can vary from 100 to 2,200 Nm. Torque indicates how quickly and strongly the tool is able to screw in the fastener. The higher this indicator, the more complex work the tool is capable of performing.
Wrenches with different torques are designed for different types of work:
- Up to 160 Nm - for small fasteners and plastic structures;
- Up to 250 Nm - for tightening and removing nuts on aluminum or thin steel;
- Up to 440 Nm - for repair work, in particular, roofing;
- Up to 810 Nm - for work with cars and other equipment.
The most common wrenches among craftsmen with a maximum torque of 400-800 Nm.
Reverse
This function assumes the rotation of the shaft in the opposite direction. If there is no reverse in the nutrunner, it can only be used to unscrew or tighten the fasteners.
Battery type and capacity
The impact wrenches can work on Ni-CD, Ni-MH or Li-Ion. The latter are considered the most modern, they have no memory effect, practically do not self-discharge. The battery capacity can be between 1.5 and 5 mAh. This parameter determines the duration of the autonomous operation of the instrument.
When buying, be sure to check the complete set. If you plan to use the wrench intensively, pay attention to models with a large battery capacity and two batteries included.
Many manufacturers produce cordless tools in rulers, in which case the batteries are interchangeable. There are models on the market from brands such as Makita, Bosch, Ryobi, which are not included in the set with the battery and charger. It is assumed that the customer already has a cordless tool from the same series. This makes it possible to significantly save money.
Rating of the best cordless impact wrenches
We offer you TOP-4 nutrunners from the most popular manufacturers.
Best cordless impact wrench from DeWALT
1. DeWALT DCF899P2
The cost of the model is about 37 thousand. rubles. Due to the high torque of 950 Nm, the unit can work even with high-load fasteners. LED backlighting is provided. The instrument is powered by a Li-Ion battery with a capacity of 5 mAh, with a voltage level of 18 V. Compatible with fasteners up to size M20. The set contains two batteries at once, the set comes in a plastic case for storage and carrying. The functions of impact (2400 bpm), reverse and rotation speed control are provided. The model weighs a lot - 3.3 kg, but this is a price to pay for reliability and performance.
Price: ₽ 37 290
DeWALT DCF899P2
Best cordless impact wrench from Bosch
2. BOSCH GDS 18 V-LI HT 0
The price of a tool from the professional "blue" line of Bosch is about 20,000 rubles. The torque of 650 Nm allows working with loaded fasteners. The metal body and the particularly robust all-metal gearbox make it possible to use the tool even in harsh conditions. Illumination of the working area is provided. The proprietary technology of the manufacturer Cool Pack, together with the Cell Protection system, are aimed at protecting the battery, they protect against deep discharge, overload and overheating. The 5mAh battery is sufficient for long battery life. The set includes two batteries. The wrench belongs to the percussion type (up to 2100 beats / min), the function of reverse and adjustment of the rotation speed is provided.
Price: ₽ 19 888
BOSCH GDS 18 V-LI HT 0
The best cordless impact wrench from ZUBR
3. BISON ZGUA-18-Li K
The cost of this domestic model is from 6,500 rubles. Not a bad economical option for a home craftsman. The tool allows you to work with small metal structures, to cope with changing the wheels of a car. The torque is 350 Nm. Works with fasteners ranging from M6 to M16. Equipped with an impact function (up to 3300 bpm), spindle speed control and reverse. Additionally, there is an illumination of the working area. Powered by a lithium-ion battery with a small capacity - only 1.7 mAh, which is not designed for long work without recharging. There is no additional battery included. The tool is supplied in a box.
Price: ₽ 6 430
BISON ZGUA-18-Li K
Best cordless impact wrench from Makita
4. Makita DTD152Z
The cost is about 5,000 rubles. The tool is intended for those craftsmen who already have a tool from this manufacturer working on a Li-Ion battery in their arsenal. The set with the wrench does not include a battery and charger, which has a positive impact on the price. Powered by compatible 18 V batteries. The indicator of the maximum torque is 165 Nm. The chuck allows clamping of tooling up to 6.35 mm in size. Only one spindle speed is provided. The unit is equipped with the functions of impact (up to 2900 bpm) and reverse. There is a built-in backlight. Stable operation is ensured by the overload and overheating protection system.
Price: ₽ 5 269
Makita DTD152Z
FAQ
Can cordless impact wrenches be left out in the cold?
It is not recommended to store cordless wrenches at subzero temperatures. After that, such a tool may still work, but there will probably be problems with charging the battery.
How long does a cordless impact wrench hold a charge?
It depends on the capacity of the battery and the intensity of work. The higher this indicator, the longer you can work with the tool without recharging.
Read also:
Best pneumatic impact wrenches
