2PCS 6mm Diamond Core Drill Bit M14 Thread Connection Vacuum Brazed Diamond Drill Bit for Tile Marble Granite Porcelain Concrete Quartz Stone

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  • Recommended materials - Nice for dry or wet drilling, great for drilling clean holes to hard materials like tiles, porcelain ground, granite ceramic and marble brick.
  • Machine - Used for angle grinder, the recommend speed is 6,000 RPM, the max speed is 11,000 RPM. If you fit them on hand drill or other machines, you can use the hex shank adpater.
  • Super Quality Raw Material -Using vacuum brazed technology ,which increases resistance to temperature and friction,to make the diamond particles better attach to the core steel,imporve the performance and lifetime.Constructed with high grade diamond grit for effortless cutting and improved durability in tough applications.

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