1PC 20mm Diamond Drill Bit with Center Pilot Hole, Diamond Hole Cutter, Professional Tile Hole Saw for Tile Glass Porcelain, Marble Ceramic Granite

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  • Professional Diamond Coating This diamond-coated hole saw features vacuum brazed technology, making it ideal for cutting through tough materials like tile, porcelain, glass, marble, and ceramic. It ensures high performance and longer service life.
  • Accurate Hole Cutting with Pilot Center Drill The pilot center drill bit helps prevent slipping, ensuring precise and clean cuts, even on the toughest surfaces like porcelain tiles and marble.
  • Durable and Long-Lasting Built with high-quality diamond grit and vacuum brazed technology, this drill bit provides superior wear resistance and heat protection, offering extended durability and efficient cutting performance.
  • Efficient Cutting The thick and uniform diamond coating ensures smooth and fast cutting, while the lateral holes allow water cooling and easy chip removal during the drilling process.
  • Versatile and Easy to Use Suitable for a wide range of materials, including tiles, porcelain, glass, marble, and granite. Use water for cooling, and keep drill speeds between 500-800 RPM for optimal performance.

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