Air Impact Wrench This Impact Wrench includes durable ergonomic construction that stands up to most industrial applications, and delivers maximum torque for the most demanding job situations. Included is a twin-hammer mechanism for reduced vibrations and comfort. The pistol grip design offers a comfortable, contoured handle with a forward and reverse switch, making it perfect for one-handed operation. Features include... 1/2" Drive 8000 RPM 600 ft/lbs Torque 3.5 CFM 1/4" NPT air inlet Handle Exhaust