Lablanc - 15PCS Diamond Drill Bits Hole Saws Hole Saws Diamond Hole Saws for Glass, Ceramic, Porcelain, Marble, Tile and Granite 6-50mm

[15 Sizes]: 15PCS Drill Diameter has 6/8/10/12/14/16/18/20/22/25/26/28/30/40/50mm. Diamond drill bit for glass, ceramic tile bottles, block glasses, ceramics, marble stone slabs, perforated granite and other hard surfaces (especially glass and ceramics). [Materials]: Diamond drill bit is made of high quality natural diamond sand and hardened by special electroplating technique. Note: Our drill bits are not suitable for use with microcrystalline materials of any surfaces and tiles. [Advantage]: Nickel-plated diamond dust coating provides excellent performance and cutting resistance, no damaged edge, no vibration phenomenon, low cutting resistance, fast opening speed, easy chip removal, etc. [Operation]: Drilling with diameter can be used to cut diagonal holes, create a circular connection and drill the hole to the right. Water must be lubricated during drilling. [Note]: Reduce the speed of the diamond tip, low drilling pressure.If you have any questions about the quality of our 15PCS