Air Hammer Duty Heavy Duty Shank Shape Round Stroke Length 3 in Air Inlet Size 1/4 in NPT Kit Contents Bare Tool Blows per Minute 2 600 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 Quick Change Power Source Air Powered Air Consumption 2.66 cfm Air Pressure 90 psi Exhaust Location Handle Min Hose Size 3/8 in Accessory Free Tool Change No