The Scotch-Brite™ Radial Bristle Disc Thin Bristle SB30121 is a durable radial plastic disc for deburring or coating removal that also leaves a satin finish. The disc is made of 220 grade 3M™ Cubitron™ Grain Abrasive Mineral and fits most portable hand tools or small bench motors. The Scotch-Brite™ Radial Bristle Disc Thin Bristle SB30121 makes tough jobs easier and can help you achieve a burr-free, paintable finish in fewer steps without damaging the base material. The non-woven, open web, durable construction is designed to resist loading and greatly increase the life of the disc. The Scotch-Brite™ Radial Bristle Disc Thin Bristle SB3012 fits most portable hand tools and small bench motors. Combine discs to form a brush to suit your abrasive needs.