Durable 3M radial Disc brushes can be used to replace wire brushes. Cleans with minimal pressure. Works on a variety of coatings and is a safe alternative to wire brushes. Individual molded discs impregnated with abrasive, that are grouped together to form a brush, that is flexible and cool-running. The abrasive in these bristle discs are consistent throughout the wheel, with the continuous introduction of a new cutting surface. This is the 120 Grit (White) grade, depending on the application, you will want to stack between three and six discs. Radial Discs are very flexible, cool-running, long-lasting and provide a uniform finish. Bristle Disc is great for the Creative Arts and Metal-Smiths, can be used for Wood, Gold, Silver, Copper, Brass, and Platinum will work for other metals in various applications APPLICATIONS: Wood Working - Finishing & Polishing - Descaling - Corrosion Removal - Blending - Surface Edge and Contour Deburring - Weld Cleaning - Scale Removal...