SP Air Corporation 1/2-inch heavy duty impact wrenches are ideal for a wide variety of fastener turning jobs in both Truck shops and industrial fields. This compact, high powered impact wrench is preferred for tasks including spring or pinion nut work, truck pad removal, major engine teardowns, and much more. The twin Hammer clutch delivers 800 ft. /lb. Of maximum torque for full control. With 4 torque settings and full power reverse, this compact impact wrench delivers high power for its small size.