Detail 12 Pcs Diamond Drill Bits Glass Plate Milling Bit Set, Hollow Core Drill Bits, Extractor Remover Milling Cutter for Glass, CerSt Artistic Design: These Diamond Drill Bits are the perfect addition to your taken set! The unique circular design removes clean wheels, and the side holes unload augers automatically for maximum efficiency. Better yet, the shank prevents slipping and holds the bit securely in place!12-in-1 strong diamond dust cutter: take your drilling to the next level. With luxurious diamond dusts, these high-quality bits will provide unbeatable drilling performance for years to come. An extremely versatile set with a hole saw: if you can dream, you can do it. Diamond drill bits remove the perfect circle from glass, tile, marble, granite, ceramic, and more. The perfect size for any project: Each set of cutters contains 12 different sizes from 4mm to 50mm in diameter. Drill small holes, large holes, or something in between. You will have the perfect size for each wheel. User-friendly: These bits are perfect for amateurs and professionals! Drill diagonally to get the hole, then hold the drill bit at a 90-degree angle to drill through the material. You'll be done in no time. A must-have cutter for glass processing, interior decoration or DIY projects! Ingenious Design Makes Drilling SimpleEach drill bit has a shank that holds the drill bit in place without slipping. You'll be able to drill clean holes effortlessly! Two side holes on the bits allow for easy removal of augers to increase drilling accuracy and efficiency. Unpleasant debris will be removed automatically to make the bits last as long as possible. Notes:1. These bits are not suitable for concrete drilling or materials that are thicker than 0.5 in.2. To extend the life of the bits, lower the drilling speed and wet the surface with water to increase lubrication. Material: SteelColor: SilverSpecial Function: Always Use Water for LubricationPackage Contents12x CutterOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.