Diamond drill bit hole saw accessory set for glass/tile/ceramic/core drilling tool 8-50mm 10 pieces

High-quality diamond drill bit set that won't rust and cuts quickly – Made from high-strength carbon steel with a nickel-plated surface, these drill bits are durable and precise. The drill bit tip is coated with an 80-grit diamond coating for uniform performance, increasing drilling speed and providing a cleaner cut than ordinary hole saws. 10 pieces in the most commonly used sizes – Includes the following diameters: 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, and 50mm. Laser markings ensure the size meets most of your needs. Application: Suitable for drilling holes in glass, marble, tile, pots, fiberglass, porcelain, ceramic, slate, granite, and more. Works with all electric drills and impact drills. Nice design – The center and side holes help remove debris easily; the nickel-plated surface extends the lifespan and improves corrosion resistance. Notice: When cutting hard materials, it is important to ensure the drill bit remains cool to avoid damaging the material being drilled and premature wear of the bit. Water is necessary for lubrication during drilling, which can extend the life of the drill bit set. Set of 10 diamond drill bits, hole saws, for cutting glass, tile, ceramic, marble, porcelain - 8 to 50 mm Diamond drill bit: Diamond drill bits, diamond core drill bits, diamond hole saw or diamond drill bits. They are often called glass drills or tile drills, but since they are used to drill glass, ceramics, porcelain, tiles, limestone, slate, marble, granite, stone, and fiberglass, they are more general in their use. Product Features: Material: Steel. Hole Saw Diameters: 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, 22 mm, 25 mm, 50 mm. Application: Suitable for stone, tiles, ceramics, glass, and granite. Good performance, long service life. Excellently suited for glass and ceramic tiles to make clean holes and precise. An electric drill works best (not included in the project). Instructions: 1. Start your hole diagonally, make a mark, then drill. 2. Always use lubrication (water), or the diamond drill bit will burn out. 3. It is very efficient for cutting concrete and tile. It generates minimal heat and won't damage the drill bit. Contents: 10 Diamond Drill Bits