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