2,600 RPM; Stall resistant 0.60 HP motor; Convenient and comfortable throttle lever design; Ergonomic molded handle grip adds comfort and insulation in cold weather; Complete with coaxial rear hose assembly to eliminate blowing of rubber particles/dust in the work area; Low noise level; Low air consumption; 5/16″ Hex quick change chuck with threaded arbor for mounting buffing cones and accessories