High-quality super-duty air impact wrench tackles the big jobs in the shop. Adjustable second-hand support handle gives you additional control. Key Product Specs Drive (in.) 1 Average Air Consumption (CFM) 12 CFM at Load 12 Speed - No Load (RPM) 3,500 Blows Per Minute (BPM) 4,000 Max. Torque (ft.-lbs.) 2,300 Inlet Size (in.) 1/2 Min. Hose Size (in.) 1/2 Hammer Mechanism Pinless Variable Speed Yes Additional Product Specs * Polished aluminum case * Through-handle exhaust * Forward/reverse settings with RPM control * D-handle * Rubber bumper rings protect tool