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 3/8 in, Exhaust Location Bottom, Duty Rating Industrial Duty, Breakaway Torque 1,300 ft-lb, Fastening Torque 1,070 ft-lb, Free Speed 6,600 RPM, Impact Rated Yes, Impact Sound Level 109 dB, Impacts per Minute 900, Number of Speed Settings 4, Power to Weight Ratio 79.8 ft-lb/lb, Max. Bolt Capacity 1 in, Drive Size 1 in Square