Air Ratchet Wrench, General Duty, Square Drive Size 1/2 In., Torque Range 10 to 45 ft.-lb., Max. Torque 54 ft.-lb., Free Speed 160 rpm, 4.00 Average CFM @ 15 Second Run Time, 19.0 CFM @ Full Load, Required Pressure 90 psi, Air Inlet 1/4 In. NPT, Min. Hose 3/8 In., Head Width 1-1/2 In., Head Height 1-1/16 In., Length 11 In., Reversing Yes, Throttle Lever, Exhaust Adjustable