Uses: Tightening and loosening screws of 0.4 - 0.6 inches (10 - 16 mm). Mainly for automobile maintenance, tire wheel removal and removal. (Features) Ultra lightweight composite body 2.9 lbs (1.27 kg) (composite synthetic resin for strength and lightweight). Adopts a twin hammer (2 large hammers force the rotation axis once per rotation. The linear throttle allows subtle rotation adjustment to be performed through the trigger operation. Rear exhaust system that prevents dirt and dust from getting up ; Left and right rotation switches are a two-stage tightening adjustment with a integrated lever system. Inlet with net. (Prevents debris from entering the motor. Air inlet 1/4; PT screw