Impact Wrench Power Source Air Powered Air Consumption 19 cfm Air Inlet 1/4 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 General Duty Breakaway Torque 200 ft-lb Fastening Torque 200 ft-lb Free Speed 8 500 RPM Impact Rated Yes Impact Sound Level 90 dB Impacts per Minute 1 600 Number of Speed Settings Continuous Power to Weight Ratio 71.4 ft-lb/lb Max Bolt Capacity 3/8 in