LDEXIN 10Pcs Diamond Coated Hole Saw Core Drill Bits Extractor Remover Tools for Glass Ceramic Tile Marble Rock Porcelain (5mm/0.2inch)

LDEXIN 10Pcs Diamond Coated Hole Saw Core Drill Bits Extractor Remover Tools for Glass Ceramic Tile Marble Rock Porcelain (5mm/0.2inch)

• 【Super Material】 These diamond drill bits made of high-speed steel with smooth nickel plating surface , durable and have a long sevice life,which are high quality and good performance that excellent for making clean and accurate hole.
• 【 Sharp&Smooth Cut 】Coated with high quality diamond, the diamond hole saw creates a high precision, smooth cut with no broken edges. Reduced drill speeds, low drill pressure and increased use of water lubrication will extend drill bit life considerably
• 【Cut-outs Design】The end of this drill bit is grooved, so the diamond coating has better adhesion .The large cut-outs at the sides and the top to facilitate the entrance of cooling water and eject the scrap, for longer life
• 【 Ideal Application】 This diamond coated core drill bit removes a complete circle from glass, marble, tiles,granite, ceramic or other.They are perfect for drill glass, tile bottles,blocks jars, fiberglass porcelain tile ceramic, slate Mable, granite light stone
• 【Note】When you using the diamond drill bits, please use lubrication (water),otherwise the diamond core drill will burn.Not for use on Concrete or for depths beyond about 1/2".