Air Hammer Duty Heavy Duty Shank Shape Hex Stroke Length 3 5/8 in Air Inlet Size 3/8 in NPT Female Kit Contents (1) Bare Tool (1) Spring Retainer Blows per Minute 2 400 bpm Shank Size 0.58 in Air Inlet Gender Female Air Inlet Type NPT Air Inlet Connection Size 3/8 in Compatible Collar Shape Oval Retainer Type Spring Power Source Air Powered Air Consumption 10.8 cfm Air Pressure 90 psi Exhaust Location Side Min Hose Size 1/2 in Material Application Concrete Steel