Grinding And Sharpening: In metalworking, sandpaper could be used for grinding and sharpening many metal resources and surfaces. Coarser grits, like 36 or 60, are used to get rid of material and form the metallic. This is very helpful for reshaping or sharpening blades, chisels, or other cutting equipment. An https://x.com/hongyuxin20/status/1817068146538528952