Air Grinder Grinder Orientation Angle Free Speed 6000 rpm Wheel Dia 7 In. Wheel Type Type 27 HP 1.20 HP Heavy Duty Average CFM @ 15 Second Run Time 10.75 CFM @ Full Load 43.0 Air Inlet 1/2 in NPT Required Pressure 90 psi Min Hose Size 1/2 In. Overall Length 11-3/4 In. Handle Material Composite Variable Speed No Exhaust Side Throttle Lever Lock Yes Includes 11399 Type 27 Wheel Mounting Adapter Kit Front and Rear Flange and Hex Wrench Grinder Type Type 27