Impact Wrench Power Source Air Powered Air Consumption 39 cfm Air Inlet 3/8 in NPT Air Pressure 90 psi Max Air Pressure 100 psi Min Air Pressure 90 psi Min Hose Size 1/2 in Exhaust Location Bottom Duty Rating General Duty Breakaway Torque 1 200 ft-lb Fastening Torque 1 200 ft-lb Free Speed 5 500 RPM Impact Rated Yes Impact Sound Level 99 dB Impacts per Minute 1 000 Number of Speed Settings Continuous Power to Weight Ratio 96 ft-lb/lb Max Bolt Capacity 1 in