Best Selling Screwdriver Electric Power Drill Tools 1500 mAh Electric Screwdriver

As a mechanical part, the electric screwdriver can not work normally without the power supply of the electric screwdriver, which provides energy and related control functions for the electric screwdriver. Drive the motor to rotate. Because the parameters of the electric screwdriver motor are different, the speed will be different when the power supply of the electric screwdriver outputs the same power.