Needle Scaler Kit, Body Style - Air Tools Pistol, 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 1.1, CFM @ Full Load 4.6, Required Pressure 90 psi, Min. Hose Size 3/8 in, Overall Length 12 3/4 in, Design Pistol, Housing Lock Adjustable Collar, Throttle Lever, Standards ISO-28927-9, For Use With Flaking Paint, Rusty Bolts, Includes Set of 2mm Needles, Set of 3mm Needles