KURSTOL Diamond core drill bit - Diamond Finger Milling Bit Dia 1"/25mm Triangle Shank for Enlarging Shaping Round Bevel Existing Holes in Porcelain,Hard Ceramic,Granite,Marble Roun

• 【Package Includes】1pc Grinding and drilling all in 1 drill bits,Diameter 1"(25mm),Total Length 65mm,Workable Length 30mm,Triangle shank.
• 【 Money-Saving Diamond Coated Milling Bit】 You can easily produce many Holes of Different Sizes with just One Standard Diamond Core drill Bit.
• 【 Vacuum Brazed Diamond Technology】High-Quality Diamond Powder with Strong Steel Body can Bring Excellent Working Performance,High efficiency,Faster,Lasts longer
• 【Multiple Application】Both Dry or Wet use,to Drill,Enlarge and Reshape holes in Porcelain Tiles, Hard Ceramic Tiles, Granite, Marble & Engineered Stones,and also be used to notch edges of tile to accommodate for pipes or wiring.
• 【Wide Compatibility】Can be Installed with Any Hand-Held Angle Grinders M14. Great for Plumbers,other Conduits,Tile Installers Or Setters, Contractors,Electricians Wireman Or DIY Users.

Features: 1、High quality base steel, combined with cutting-edge vacuum brazing technology, sharp and durable, extending service life; 2、Various functions such as reaming, grinding and drilling are provided, suitable for drilling and grinding in various scenarios; 3、The special design of the combination of grinding and drill bit, redefining the inherent drilling before grinding mode. Drilling and grinding are carried out at the same time to improve work efficiency; 4、High quality # 70/80 diamond particles covering the working surface, more delicate grinding and better finishing effect; PLEASE PAY ATTENTION : 1.Wear all applicable safety equipment when using these diamond hole saws. - Eye protection (goggles)，Ear protection (earmuffs)，Hand protection (gloves)，Lung protection (dust mask) 2.If using drills,please fix an adapter for drilling bits like 5/8"-11 Male Thread to 3/8" Hex Shank Adapter or SDS Shank Adapter.If using Hammer Drill,please shut off Hammer Mode;