30pcs 3mm/0.12" diamond mounted point in a protective plastic case, made of metal and diamond.
Cylindrical shape tip, electroplated diamond head.Diamond Point set is perfect for use with your high speed drilling or grinding tool.
Make Clean Holes in Tiles, Marble, Rocks, Ceramic, Porcelain, Gemstones
Fit most professional electric drills, best for replace nail drill bits. Can be installed on the electronic grinder, hanging mill and hand electric drill (not included here).
Practical - Suitable to be used with hand drills, flex shafts and dremels.Highly recommended for jewelers, lapidary use, hobbies, crafts, craft modeling, home repair and so much more