Grind away rust and scale with the D7210 coarse grit TR (Type III) quick-change diamond disc. Featuring a diamond abrasive pattern for enhanced durability and efficiency, the disc delivers a great cut rate on fiberglass, composites, ceramic, metals and other surfaces. A color coded backing provides a convenient way to organize discs by grit sizes for quick visual identification and retrieval and the sharp coarse grit takes care of weld blending, deburring and stock removal applications.