Sanding discs are circular abrasive discs that are used for sanding down wood, metal, and plastic. They come in a variety of grits, which determines the coarseness of the sandpaper. The lower the grit number, the coarser the sandpaper. Sanding discs can be used by hand or with a power tool such as a drill or sander. When using a power tool, it is important to use the correct disc for the type of material you are working on.
