Needle Scaler Kit Body Style - Air Tools In-Line Duty Cycle - Air Tools Industrial Duty Stroke Length 1 in Blows per Minute - Air Tools 4 300 Air Inlet Size - Air Tools 1/4 in NPT Average CFM @ 15 Second Run Time 13.9 CFM @ Full Load 13.9 Required Pressure 90 psi Min Hose Size 3/8 in Overall Length 16 1/4 in Design Straight Shank 1/2 in Housing Lock Needle Throttle Lever Standards ANSI OSHA For Use With Chisels Needles Includes Quick Change Collar Retainer