Nutrunner Drive Size 1 in Square Torque Range 250 to 650 ft-lb Max Torque 660 ft-lb Free Speed 100 RPM Air Pressure 90 psi Air Consumption 40 cfm Power Source Air Powered Max Air Pressure 102 psi Min Air Pressure 44 psi Min Hose Size 3/8 in Exhaust Location Bottom Duty Rating Industrial Duty Air Inlet 3/8 in NPT Handle Type Pistol Grip Handle Material Aluminum Housing Material Steel Overall Length 15 in Fastening Torque 660 ft-lb Reversible Yes Tool Weight 15.2 lb