Impact Wrench Power Source Air Powered Air Consumption 80 cfm Air Inlet 1/2 in NPT Air Pressure 90 psi Max Air Pressure 100 psi Min Air Pressure 90 psi Min Hose Size 3/4 in Exhaust Location Bottom Duty Rating Industrial Duty Breakaway Torque 3 252 ft-lb Fastening Torque 1 950 ft-lb Free Speed 5 000 RPM Impact Rated Yes Impact Sound Level 99 dB Impacts per Minute 850 Number of Speed Settings Continuous Power to Weight Ratio 143.8 ft-lb/lb Max Bolt Capacity 1 in