Impact Wrench, Power Source Air Powered, Air Consumption 85 cfm, Air Inlet 1/2 in NPT, Air Pressure 90 psi, Max. Air Pressure 90 psi, Min. Air Pressure 90 psi, Min. Hose Size 5/8 in, Exhaust Location Bottom, Duty Rating Industrial Duty, Breakaway Torque 5,900 ft-lb, Fastening Torque 4,055 ft-lb, Free Speed 2,800 RPM, Impact Rated Yes, Impact Sound Level 109 dB, Impacts per Minute 750, Number of Speed Settings 3, Power to Weight Ratio 167.1 ft-lb/lb, Max. Bolt Capacity 1 7/8 in