Scotch-Brite™ Radial Disks are a superior alternative to wire brushes for polishing any type of metal. The flexible, molded bristles are treated with proprietary 3M™ Ceramic Abrasive that enhances the toughness and hardness of the grain to achieve the desired results using less pressure and without generating heat. Stack three or more disks together to create a brush that is ideal for general metalworking applications involving aluminum, brass, bronze, carbon steel, cast iron, stainless steel, and more.