Diamond Coated Beading Reaming Files 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 This master diamond bit set allows you to shape, grind and finish with precision