Air Digger Hex Shank Size 7/8 in x 3 1/4 in Piston Bore Size 1 11/64 in Piston Stroke Length 4 in Maximum Blows per Minute 1 850 bpm Retainer Type Sleeve Air Inlet Size 3/8 in Air Inlet Gender Female Air Consumption 47 cfm Air Inlet Type NPTF Tool Weight 27 lb Application Break Demolition Foundation Work Piping Duty Heavy-Duty Features Extra Long Nozzles Multiple Retainer Configurations Three-Finger Inside Trigger Handle Type D-Handle Minimum Hose Size 1/2 in