This heavy-duty air impact wrench delivers awesome torque, yet is lightweight for less operator fatigue. Has 6in. anvil for extra reach. Drive (in.): 1, Average Air Consumption (CFM): 8.75, CFM at Load: 35, Speed - No Load (RPM): 5,500, Blows Per Minute (BMP): 750, Max. Torque (ft.-lbs.): 1,550, Working Torque (ft.-lb.): 100 - 1,200, Inlet Size (in.): 1/2, Min. Hose Size (in.): 1/2, Variable Speed: Yes, Tool Weight (lbs.): 25