Air Ratchet Wrench Drive Size - Air Tools 1/2 in Square Max Torque 100 ft.-lb. Torque Range 20 to 80 ft.-lb. Industrial Duty Duty Cycle - Air Tools Free Speed 600 rpm Length 11-1/2 In. 3.10 Average CFM @ 15 Second Run Time 2.4 CFM @ Full Load Required Pressure 90 psi Air Inlet Size - Air Tools 1/4 in NPT Retainer Type Ball Variable Speed No Min Hose 3/8 In. Head Width 1-21/32 In. Head Height 2-9/32 In. Reversing Yes Handle Material PVC Housing Material Aluminum