Die Grinder, Duty Heavy Duty, Horsepower 0.4 hp, Collet Size 1/4 in, 6mm, Grinder Orientation 7 Degree Offset, Air Inlet Connection Size 1/4 in, Air Inlet Gender Female, Max. Speed 15,000 RPM, Air Inlet Type NPT, Air Inlet 1/4 in NPT Female, Tool Style Straight, Kit Contents (1) Bare Tool, Includes 1/4 in Collet Insert, 6mm Collet Insert, Safety Stop Mechanisms Safety-Lock Throttle Lever, Anti-Kickback Clutch Type None, Power Source Air Powered