Diamond Ball Burs 1/8" Shank 12pc Set This is a new set of 12 diamond coated ball burs This master diamond bur set allows you to shape, grind and finish with precision Great for filing glass, ceramics, tile, brick, plastics, wood, fiberglass, stone, rock carbide, gold, platinum, silver, metals or anything else that is hard Recommended for jewelers, lapidary, hobbies and crafts, modeling, home repair, etc Provides uniform cutting on wide a variety of materials