4Pc M14 Thread Dry Vacuum Brazed Diamond Drilling Core Bit Ceramic Tile Hole Saw Granite Marble Drill Bits 20/25/35/50mm

[High-quality material] This set of diamond hole saws is made of durable high-quality alloy material with diamond frosted which can meet your various work needs. Improve your work efficiency [Product Features] Accurate drilling can be achieved without additional drilling tools. When water needs to be added during long-term work the bit temperature can be prevented from being too high the bit can be protected and the service life of the bit can be prolonged. [Scope of application] It is suitable for all kinds of stone tools stone materials including marble and ceramic tiles etc. and can be used for decorative drilling of industrial buildings and houses. Sharp drills can effectively improve work efficiency. [Product adaptation] The product is adapted to M14 thread drill diameter 20/25/35/50mm. Suitable for most angle grinders. Colour: Black Material: Emery Coated Alloy Package Contents: 4 x Hole opener