Diamond block that fits the user's hand. Can be used dry but wet use is recommended to extend the lifetime of the block (better lubrication, cooling and removal of debris). Start with the coarsest grain (G60) and work through the remaining grains (G120, G200), until polishing with the finest grain (G400) to achieve a better finish. For grinding and edge polishing work on ceramic tiles, porcelain tiles and natural stone surfaces.
