Needle Scaler Kit, Body Style - Air Tools In-Line, Duty Cycle - Air Tools General Duty, Stroke Length 1 5/16 in, Blows per Minute - Air Tools 4,000, Air Inlet Size - Air Tools 1/4 in NPT, Average CFM @ 15 Second Run Time 1.0, CFM @ Full Load 4.0, Required Pressure 90 psi, Min. Hose Size 3/8 in, Overall Length 11 3/8 in, Design Straight, Housing Lock Fixed Collar, Throttle Lever, Standards ISO-28927-9, For Use With Flaking Paint, Rusty Bolts, Includes Set of 3mm Needles