5-Inch (125mm) Pleated Wool Felt Polishing Wheel :Final mirror polishing, crystallization treatment, and waxing. It has no cutting action itself. Its purpose is to work in conjunction with crystallization agents, polishing pastes, or concrete densifiers after the surface has been ground to 3000+ grit. Through high-speed friction, it creates a “heat polishing” effect, instantly producing a brilliant high-gloss finish.