Air Hammer Duty Heavy Duty Shank Shape Round Stroke Length 3 3/8 in Air Inlet Size 3/8 in NPT Male Kit Contents (1) Bare Tool (1) Retainer Blows per Minute 1 500 bpm Shank Size 0.498 in Air Inlet Gender Male Air Inlet Type NPT Air Inlet Connection Size 3/8 in Compatible Collar Shape Round Retainer Type Chisel Power Source Air Powered Air Consumption 13 cfm Air Pressure 90 psi Min Hose Size 1/4 in