The DEWALT DWMT70773L 1/2″ Square Drive Impact Wrench-Heavy Duty offers a maximum torque at 650 ft-lbs whichs helps to break free fasteners that are stubborn or stuck. The 7500 RPM (Free Speed at90PSI) helps provide high power fastening, with a twin hammer mechanism. This impact wrench features one hand operation – it has a forward/reverse switch for quick and easy directional changes – along with an adjustable power regulator. This impact wrench offers a composite body design, and ergonomic handle with rubber cushion grip, and a bottom handle exhaust. It is also designed with shock resistant housing bumpers that help to protect the housing and prevent scuffing. It operates at 1100 bpm (blows/minute), has a 1/4-inch air inlet, maximum air flow of 5.9 CFM.