Needle Scaler Kit, Body Style - Air Tools In-Line, Duty Cycle - Air Tools Industrial Duty, Stroke Length 1 1/8 in, Blows per Minute - Air Tools 4,600, Air Inlet Size - Air Tools 3/8 in NPT, Average CFM @ 15 Second Run Time 2.5, CFM @ Full Load 10.2, Required Pressure 90 psi, Min. Hose Size 3/8 in, Overall Length 17 1/2 in, Shank 1/2 in Square, Housing Lock Needle, Throttle Lever, Standards ISO-28927-9, For Use With Needles, Includes (19) Steel Needles 7 in x 1/8 in