Die Grinder Duty Heavy Duty Horsepower 0.4 hp Collet Size 1/4 in Grinder Orientation Straight Air Inlet Connection Size 1/4 in Air Inlet Gender Female Max Speed 25 000 RPM Air Inlet Type NPT Air Inlet 1/4 in NPT Female Tool Style Straight Kit Contents (1) Bare Tool Includes (2) Collet Wrenches Grip Style Barrel Grip Safety Features Locking Throttle Lever Switch Location Top Power Source Air Powered