High-quality air impact wrench tackles the big jobs in the shop. Fixed left-hand support handle gives you additional control. Drive (in.): 1, Average Air Consumption (CFM): 11, Speed - No Load (RPM): 3,500, Max. Torque (ft.-lbs.): 1,800, Inlet Size (in.): 3/8, Min. Hose Size (in.): 3/8, Variable Speed: Yes