Z-LION Electroplated diamond abrasive belts are widely used on portable air belt sanders such as 3M File Belt Sander, Makita 9031 Belt Sander, for grinding and polishing of straight, bevel and round stone edge, inside and outside radius of masonry products, countertop sink cutouts, etc. Works great for granite, marble, silestone, dekton, concrete, terrazzo, tile and other stone and construction materials.