Impact Wrench Power Source Air Powered Air Consumption 23 cfm Air Inlet 3/8 in NPT Air Pressure 90 psi Max Air Pressure 100 psi Min Air Pressure 90 psi Min Hose Size 3/8 in Exhaust Location Bottom Duty Rating Industrial Duty Breakaway Torque 500 ft-lb Fastening Torque 350 ft-lb Free Speed 5 000 RPM Impact Rated Yes Impact Sound Level 86 dB Impacts per Minute 1 200 Number of Speed Settings Continuous Power to Weight Ratio 83.3 ft-lb/lb Max Bolt Capacity 1/2 in