3M ¾" Coarse Yellow Radial Bristle Discs

These 3M radial bristle discs are an innovative alternative to wire brushes, featuring flexible plastic bristles that reach into every crevice of a jewelry piece. The coarse 80X grit is ideal for removing heavy oxidation, casting skin, and fire scale without the need for messy polishing compounds. Measuring ¾ inches (approximately 19.05 mm) in diameter, they are perfect for use on a flexible shaft machine to clean up complex textures and filigree. Because the abrasive is molded directly into the bristles, they provide a consistent finish and maintain their cutting power until they are worn down to the center.