A small grinding tool with handle,Website:http://www.sharpburr.com, it can be installed on electric grinder, grinding machine, or hand ... Diamond engraving burrs: A kind of grinding tool made by diamond bond. It has a high grinding performance, easy to use, high ... Felt bobs/wool grinding head: suit for mirror polishing various of mold, electronic, glass, medical equipment, gold & silver jewelry, metals, ...