1/2 impact wrench with 380 ft lbs of torque for fast removal of lug nuts and bolts in overall automotive service, bodyshop, farm and light truck work. Forward/reverse switch for one-handed directional changes. Patented balanced ergonomic design for comfort during continuous use. Patented single hammer impact mechanism provides 20% more working torque. Exhaust diffuser for quiet operation. Drive size: 1/2".