Impact Wrench Power Source Air Powered Air Consumption 22 cfm Air Inlet 1/4 in NPT Air Pressure 90 psi Max Air Pressure 90 psi Min Air Pressure 70 psi Min Hose Size 1/4 in Exhaust Location Rear Duty Rating Industrial Duty Breakaway Torque 65 ft-lb Fastening Torque 65 ft-lb Free Speed 10 500 RPM Impact Rated Yes Impact Sound Level 88 dB Impacts per Minute 900 Number of Speed Settings 4 Max Bolt Capacity 3/8 in Drive Size 3/8 in Square Drive Type Standard