Diablo's grinder/sander conversion kit converts your angle grinder into a sander. Use this kit when switching from a grinding wheel to a fiber disc. All components necessary to begin polishing are included in this kit: back-up pad, locknuts and fiber discs. Diablo's backing pads and fiber discs feature break-through innovations that improve performance, extend sanding life and increase productivity. This conversion kit is designed for use in angle grinders and is ideal for metal applications.