Impact Wrench Power Source Air Powered Air Consumption 33 cfm Air Inlet 1/2 in NPT Air Pressure 90 psi Max Air Pressure 90 psi Min Air Pressure 90 psi Min Hose Size 1/2 in Exhaust Location Bottom Duty Rating Industrial Duty Breakaway Torque 1 770 ft-lb Fastening Torque 1 530 ft-lb Free Speed 5 000 RPM Impact Rated Yes Impact Sound Level 104 dB Impacts per Minute 750 Number of Speed Settings 3 Power to Weight Ratio 71.7 ft-lb/lb Max Bolt Capacity 1 1/2 in