Grinding And Sharpening: In metalworking, sandpaper is usually used for grinding and sharpening different steel tools and surfaces. Coarser grits, like 36 or 60, are used to eliminate material and shape the steel. This is very handy for reshaping or sharpening blades, chisels, or other cutting resources. Regardless of the https://x.com/hongyuxin20/status/1818527513301467413