Impact Wrench Power Source Air Powered Air Consumption 12 cfm Air Inlet 1/4 in NPT Female Air Pressure 90 psi Max Air Pressure 90 psi Min Air Pressure 50 psi Min Hose Size 3/8 in Exhaust Location Top Duty Rating General Duty Breakaway Torque 75 ft-lb Fastening Torque 75 ft-lb Free Speed 10 000 RPM Impact Rated Yes Impact Sound Level 110 dB Impacts per Minute 1 000 Number of Speed Settings 8 Max Bolt Capacity 3/8 in Drive Size 3/8 in Square Drive Type Standard