Each set contains 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 This master diamond bit set allows you to shape, grind and finish with precision It is versatile, easy to use and trouble free Includes 3 diamond tips sizes small, large and a 45° edge reamer Has an anodized aluminum handle with comfort grip for maximum comfort and a brass chuck so rust is never a problem Has an easy release chuck friction fitted into the aluminum housing which releases instantly when the collet is unscrewed The handle is hollow for easy convenient storage of diamond tips The handle measures approximately 4 1/2" (114 mm) long