Chisel Scaler Body Style - Air Tools Pistol 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 4.2 Required Pressure 90 psi Min Hose Size 3/8 in Overall Length 16 1/2 in Design Pistol Shank 1/2 in Housing Lock Chisel Throttle Lever Standards ANSI OSHA For Use With Chisels Needles Includes 1/4 in Air Hose Nipple for 3/8 in I.D. Hose 6mm Hex Key