Air Hammer, Duty Medium Duty, Shank Shape Round, Stroke Length 2 1/4 in, Air Inlet Size 1/4 in NPT Female, Kit Contents (1) Bare Tool, Blows per Minute 3,000 bpm, Shank Size 0.401 in, Air Inlet Gender Female, Air Inlet Type NPT, Air Inlet Connection Size 1/4 in, Compatible Collar Shape Round, Retainer Type Chisel, Power Source Air Powered, Air Consumption 15 cfm, Air Pressure 90 psi, Min. Hose Size 3/8 in, Material Application Metal