3 Diamond Bead Reamers For Filing Glass, Ceramics, Tile, Brick, Plastics, Wood, Fiberglass, Stone, Rock Carbide, Gold, Platinum, Silver & Metals This is a new set of 3 diamond bead reamers Recommended for jewelers, lapidary, hobbies and crafts, modeling, home repair, etc These bits are great for filing glass, ceramics, tile, brick, plastics, wood, fiberglass, stone, rock carbide, gold, platinum, silver, metals or anything else that is hard High quality, long-wearing diamond-plated steel provide uniform cutting on wide a variety of materials Use with water for lubricant Longevity is assured as the diamond particles are electroplated onto the surface of the metal They are versatile, easy to use and trouble free Newer versions of the item shown may be shipped, as a result, there may be a slight variation in color and design.