Die Grinder Duty Heavy Duty Horsepower 0.6 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 200 or 300 Series Collet Exhaust Grip Style Barrel Grip Safety Features Lock-Off Lever Power Source Air Powered