MTS 53255 1/2-Inch Drive Lightweight Pneumatic Air Powered Compact Stubby Impact Wrench, Twin Hammer, with Max Torque of 500 ft-lbs, Working Torque Range 25-300 ft-lbs, Weight 3.2 lbs.

VERSATILE- Compact design fits into tight spaces, weighs only 3.2 pounds DURABLE- Twin hammer clutches lasts longer than twin clutches and are less sensitive to air pressure fluctuations ERGONOMIC- Lightweight aluminum handle with steel clutch housing, conveniently located trigger on comfort grip pistol-grip; handle exhaust RELIABLE- 1 year warranty