68 Diamond Coated Burs & Organizer. 68 Burs. This is a new set of 68 assorted diamond coated burs. These are 100 and 150 grit. 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. They can be used with a Dremel tool. All have a 3/32 (2.5 mm) shank. Wood Organizer. This is a new wood organizer. Holds 72 burs or create your own assortments. Top quality construction. Great for burs, drills, mini brushes, buffs, etc. The holes are for 3/32 or 1/8 (2.5 or 3 mm) shank instruments.