Needle Scaler Kit Body Style - Air Tools In-Line Duty Cycle - Air Tools General Duty Stroke Length 7/16 in Blows per Minute - Air Tools 2 400 Air Inlet Size - Air Tools 1/4 in NPT Average CFM @ 15 Second Run Time 5.1 CFM @ Full Load 5.1 Required Pressure 90 psi Min Hose Size 3/8 in Overall Length 14 1/4 in Design Straight Shank 1/2 in Housing Lock Needle Throttle Lever Standards ANSI OSHA For Use With Chisels Needles