Air Excavation Tool Barrel Conductivity Non-Conductive Spark Free Nozzle Yes Barrel Length 4 ft Air Consumption 225 cfm Soil Excavation Rate 2.3 cfm Minimum Compressor HP 50 hp Dead-Man Trigger Yes Air Inlet Type NPT Air Inlet Gender Female Air Inlet Size 3/4 in Kit Contents (1) Bare Tool Air Flow Pattern Focused Excavation Air Gun Body Style Pistol Grip Air Inlet 3/4 in NPT Female Air Outlet Size 1/2 in Number of Nozzles Included 1