Impact Wrench Power Source Air Powered Air Consumption 13 cfm Air Inlet 1/4 in NPT Air Pressure 90 psi Max Air Pressure 100 psi Min Air Pressure 90 psi Min Hose Size 5/16 in Exhaust Location Bottom Duty Rating Industrial Duty Breakaway Torque 105 ft-lb Fastening Torque 85 ft-lb Free Speed 10 000 RPM Impact Rated Yes Impact Sound Level 87 dB Impacts per Minute 1 500 Number of Speed Settings Continuous Power to Weight Ratio 42 ft-lb/lb Max Bolt Capacity 3/8 in