Impact Wrench, Power Source Air Powered, Air Consumption 41 cfm, Air Inlet 1/2 in NPT, Air Pressure 90 psi, Max. Air Pressure 90 psi, Min. Air Pressure 90 psi, Min. Hose Size 3/4 in, Exhaust Location Bottom, Duty Rating General Duty, Breakaway Torque 1,770 ft-lb, Fastening Torque 1,253 ft-lb, Free Speed 6,200 RPM, Impact Rated Yes, Impact Sound Level 113 dB, Impacts per Minute 500, Number of Speed Settings 3, Power to Weight Ratio 95.7 ft-lb/lb, Max. Bolt Capacity 1 1/4 in