Grinding and Sharpening: In metalworking, sandpaper is usually used for grinding and sharpening several metal applications and surfaces. Coarser grits, like 36 or sixty, are used to get rid of material and form the steel. This is especially helpful for reshaping or sharpening blades, chisels, or other cutting tools. The https://www.quora.com/profile/Trevor-Flatcher-2/Silicon-carbide-special-ceramics-in-modern-industry-in-a-variety-of-applications-Silicon-Carbide-Special-Ceramics-in-Mo