JOERIC Black Dry Diamond Bits Set, 10 PCS 3/16" 5mm Diamond Hole Saw Kit with Storage Bottle for Granite Marble Tile Ceramic Stone Glass Hard Materials (Not for Wood) Round Shank - J056

• · Package Includes: 10 pc 3/16" (5mm) hex shank dry diamond core drill bits . Ample quantities, can meet your needs. Durable: The Triangular Shank Diamond Drill Bit Set Is Made Of Cemented Carbide Tips With A Sealed Cooling Wax Inside, Which Melts And Cools The Cutting Face When Dry Drilling. Water Can Be Used As An Additional Coolant To Extend The Life Of The Drill. Upgraded Design: The Special Design Of The Spiral Groove On The Top Of The Brick Is Helpful For Chip Removal Smooth And Fast Drilling. Widely Applicable: Multiple Size Dry Diamond Drill Set Can Be Used For Drilling And Cleaning Of Hard Materials, Especially Suitable For Tiles, Porcelain, Granite, Ceramics, Marble, Bricks, Glass, Etc. Note: Not Suitable For Wood. Widely Compatibility: The Black Diamond Drill Is Designed With A round Shank, Which Has Higher Firmness And Is Compatible With Most Machines Such As Hand Drills And Bench Drills. The Black Round Shank Diamond Drill Comes With A Storage Bottle, Which Is Easy To Carry And Store.