60 Tough Diamond Burrs Tool for Dremel 40/150 Grits New. This is a new set of 60 diamond coated burs. This 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 1/8" (3 mm) shank. You receive: 30 Diamond burs that are 40 grit 30 Diamond burs that are 150 grit. We work 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.