Buff your vehicle quickly and efficiently with the Porter-Cable 7424XP 6 inch Variable-Speed Random-Orbit Polisher. This item features a comfortable ergonomic grip so it can be used all day long if needed. The Porter-Cable random orbital polisher provides swirl-free polishing action while working with 100% ball and roller bearing construction. The operating speed of this buffing machine is an extremely fast 2,500 - 6,800 RPM.