Impact Wrench Power Source Air Powered Air Consumption 11 cfm Air Inlet 1/4 in NPT Air Pressure 90 psi Max Air Pressure 90 psi Min Air Pressure 70 psi Min Hose Size 3/8 in Exhaust Location Rear Duty Rating Industrial Duty Breakaway Torque 125 ft-lb Fastening Torque 125 ft-lb Free Speed 12 500 RPM Impact Rated No Impact Sound Level 90 dB Impacts per Minute 830 Number of Speed Settings 3 Max Bolt Capacity 3/8 in Drive Size 3/8 in Square Drive Type Standard