22 Diamond Coated Burs Handles Jewelers Lapidary Tools. 20 Diamond Coated Burs. This is a new set of 20 diamond coated 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. Assortment includes various sizes of round, cone, inverted cone, tree, bud, cylinder and knife edge burs. Provides uniform cutting on wide a variety of materials. Use water for lubricant. All have a 3/32 (2.5 mm) shank. 2 File Handles. This is a new set of 2 black file handles. Accepts broken saw blades for wax filing. Use as hand drills with small twist drill bits. Use as screwdrivers with small screwdriver blades. Each measures approximately 5 (127 mm) long. FindingKing works hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.