Air Die Grinder, Straight, Free Speed 18, 000 RPM, HP 0.9 hp, Collet 1/4 in, Exhaust Front, Variable Speed No, Grinder Type In-Line, Average CFM @ 15 Second Run Time 38.0, Handle Material Composite, Min. Hose Size 5/16 in, Overall Length 7 21/64 in, Required Pressure 90 psi, Air Inlet 1/4 in, Bearing Type Ball, Throttle Safety Lever, Characteristics Applicable Collet, Duty Industrial