3 Diamond Bead Reamers & Handle Great 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 and handle. Recommended for jewelers, lapidary, hobbies and crafts, modeling, home repair, etc. Holds burs, files, reamers, wire, stock or tubing for filing. 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. Allows you to shape, grind and finish with precision. High quality, long-wearing diamond-plated steel burs 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. It is versatile, easy to use and trouble free. Has a knurled grip handle for maximum comfort. Use as a hand drill with small twist drills and as a screwdriver with small screwdriver blades. Accepts broken saw blades for wax filing. You receive one bead reamer that measure approximately 3" (76.2 mm) long, one that measures approximately 1 3/4" (44 mm) long, and one that measure approximately 2" (51 mm) long. The reamer handle measures approximately 4 1/2" (114.3 mm) long.