Angle Grinder, Wheel Diameter 4 1/2 in, 5 in, Horsepower 0.7 hp, For Wheel Type Type 27, Max. Speed 11,000 RPM, Air Inlet 1/4 in NPT Female, Air Inlet Connection Size 1/4 in, Air Inlet Gender Female, Air Inlet Type NPT, Lever Type Safety Lever, Spindle Thread Size 5/8 In.-11, Reach Standard Reach, Duty Heavy Duty, Variable Speed No