From the Manufacturer

The CP7775SP-6 Heavy-Duty #5 spline Impact with 6 Inch extended anvil impact wrench delivers impressive torque-1550 ft/lbs and durability, yet is lightweight for less operator fatigue. Front exhaust blows air away from the operator and the wheel well. Rubber coated low vibration side handle. Lower noise level than most comparable impacts. Drive (in.): #5 spline, Average Air Consumption (CFM): 8.75, Speed - No Load (RPM): 5,500, Blows Per Minute: 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