High-quality air impact wrench tackles the big jobs in the shop. Fixed left-hand support handle gives you additional control. Key Product Specs Drive (in.) 1 Average Air Consumption (CFM) 11 Speed - No Load (RPM) 4,600 Max. Torque (ft.-lbs.) 1,200 Inlet Size (in.) 3/8 Min. Hose Size (in.) 3/8 Hammer Mechanism Twin Variable Speed Yes Additional Product Specs * Pin-clutch design * Through-handle exhaust