Our cotton buff is a polishing wheel used in metalworking and woodworking to smooth and polish surfaces to a shiny finish. It is constructed from tightly wound cotton cloth or yarn that is mounted on a spindle or arbor. These occur in a variety of sizes and densities, and some of them include several layers of cotton, to improve their thickness and density. Cotton buffs are frequently used in conjunction with polishing agents or abrasive pastes to remove rust, blemishes, or other flaws.