Cut-Off Tool Wheel Diameter 4 in Duty Rating Medium Duty Horsepower 1 hp Max Speed 14 000 RPM Air Inlet 1/4 in NPT Female Air Inlet Connection Size 1/4 in Air Inlet Gender Female Air Inlet Type NPT Exhaust Location Rear Cut-Off Wheel Orientation Parallel Reach Extended Reach Kit Contents (1) Bare Tool (5) Cutting Discs Includes (5) Norton Cutting Disc Speed Control None Lever Type Safety Throttle Lever Maximum Wheel Thickness 1/8 in Arbor Hole Size 3/8 in