Die Grinder Duty Heavy Duty Horsepower 0.4 hp Collet Size 1/4 in Grinder Orientation Right Angle 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 Collet Assembly Mfr No 50055 Safety Stop Mechanisms Safety-Lock Throttle Lever Safety Features Safety Lock Lever Anti-Restart Technology Yes Anti-Kickback Clutch Type None Power Source Air Powered