Die Grinder Duty Heavy Duty Horsepower 1 hp Collet Size 1/4 in 6mm Grinder Orientation Extended Air Inlet Connection Size 3/8 in Air Inlet Gender Female Max Speed 7 500 RPM Air Inlet Type NPT Air Inlet 3/8 in NPT Female Tool Style Straight Extended Kit Contents (1) Bare Tool Includes 1/4 in Collet 6mm Collet Piped Exhaust Wrenches Grip Style Barrel Grip Safety Features Locking Throttle Lever Switch Location Top Power Source Air Powered