Grinding And Sharpening: In metalworking, sandpaper is often used for grinding and sharpening several metal tools and surfaces. Coarser grits, like 36 or sixty, are used to get rid of material and shape the steel. This is very handy for reshaping or sharpening blades, chisels, or other cutting resources. Lasers https://x.com/hongyuxin20/status/1817806008577839353