Impact Wrench, Power Source Air Powered, Air Consumption 21 cfm, Air Inlet 1/4 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 332 ft-lb, Fastening Torque 295 ft-lb, Free Speed 11,500 RPM, Impact Rated Yes, Impact Sound Level 100 dB, Impacts per Minute 1,250, Number of Speed Settings 3, Power to Weight Ratio 107.1 ft-lb/lb, Max. Bolt Capacity 7/16 in