Grinding And Sharpening: In metalworking, sandpaper can be used for grinding and sharpening several metallic resources and surfaces. Coarser grits, like 36 or 60, are used to get rid of material and condition the metal. This is particularly practical for reshaping or sharpening blades, chisels, or other cutting tools. For https://www.pinterest.com/pin/1001488035878244437/