A professional-grade 7mm dry diamond tile drill bit engineered for high-precision drilling in porcelain, ceramic, and glass. The high-strength diamond coating ensures smooth, chip-free holes, reducing waste and improving efficiency. This bit features a unique vacuum-brazed design that enhances cutting speed and durability. The open slot on the side improves dust extraction, preventing overheating and extending the toolƒ??s lifespan. Designed for dry use, it eliminates the need for water cooling, making it a convenient solution for tile installations and home renovations. Suitable for standard electric drills, this bit delivers superior performance for professionals and DIY users alike.