Coil springs for Electric impact wrench

An electric impact wrench is a tool that is driven by electricity to tighten or remove bolts.

In addition to normal tightening, it also has an impact function to increase the tightening torque.

In order to increase the acting torque, the motor is generally decelerated by a planetary reducer to increase the torque after output, and then the impact assembly at the front end is used to achieve the effect of outputting a greater torque.