Air Angle Die Grinder Duty Heavy Duty Horsepower 1.2 hp Collet Size 1/4 in Grinder Orientation Straight Max Speed 12 000 RPM Air Inlet 3/8 in Includes Series 300 Collet 1/4 in Exhaust Hose 31 in Flat Wrench 7/16 in Flat Wrench 11/16 in Safety Features Safety Lever Power Source Air Powered