Chisel Scaler Body Style - Air Tools In-Line Duty Cycle - Air Tools General Duty Stroke Length 1 7/64 in Blows per Minute - Air Tools 4 600 Air Inlet Size - Air Tools 1/4 in NPT CFM @ Full Load 16.0 Required Pressure 90 psi Min Hose Size 5/16 in Overall Length 10 3/8 in Design Chisel Shank Square Housing Lock Ring Throttle Lever Standards ISO 8573-1 Quality Class 2.4.3 For Use With Square Chisel