21 Volt 1/2-in Brushless Cordless Impact Wrench, Adjustable Speed

Features

• Brushless cordless impact wrench, powered by Lithium-ion battery
• With 21V 3Ah or 36V 4Ah rechargeable battery, high capacity for long-time running
• Powerful electric impact wrench delivers high torque up to 360Nm
• 3-speed selector switch of 1600/2100/2800 RPM for better control
• Produces up to 3500 impacts per minute
• One switch for forward/lock/reverse motion
• Durability, reliability, and lightweight, suitable for various heavy-duty applications like tire replacement, engineering construction, equipment maintenance, etc., to loosen and tighten bolts and nuts.

Specification

Tips: Brushless cordless electric wrench vs. brushed cordless electric wrench

Battery powered electric wrenches bring great convenience to the vast number of maintenance workers. The cordless electric wrenches is equipped with brushed motor or brushless motor. So which one is better for brushed or brushless electric wrench good? Obviously, the brushless electric wrench greatly reduces the failure rate.

What are the differences between a brushless electric wrench and a brushed electric wrench? The brushless electric wrench relies on a digital circuit to control the commutation and deceleration and speed regulation of the electric wrench. The brushless electric wrench does not use the mechanical carbon brush no longer, which greater extend its service life. In theory, the life of the brushless electric wrench can reach 20 years, while the brushed electric wrench cannot reach. The brushless electric wrench no longer uses the gear reducer, which avoids the loss of efficiency in the gear transmission, so that the efficiency can reach 80-85%, and the noise is greatly reduced.