Air Hammer Kit Duty Medium Duty Shank Shape Round Stroke Length 2 5/8 in Air Inlet Size 1/4 in NPT Female Kit Contents (1) Bare Tool (1) Flat Chisel (1) Tapered Punch (1) Spot Weld Splitter (1) Single Blade Panel Cutter (1) Edging Chisel (1) Quick Change Retainer 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 Quick Change Power Source Air Powered