18mm Diamond Hole Saw Drill Bit With A M14 Shank For Angle Grinders. For Porcelain Tiles Ceramic Slate Stone Granite Marble Glass. Diamond Core Holesaw/Hole Cutter

Versatile Use: These diamond core bits can drill holes through a wide range of hard materials including porcelain, ceramic, granite, marble, masonry, concrete, glass and tough plastics with ease. Long-Lasting Performance: This diamond drill bit is constructed using a vacuum brazed process to firmly attach the diamond particles to the steel core for maximum durability and resistance to heat and friction during cutting. Superior Cutting Power: High grade diamond grit ensures efficient and smooth cutting through even the hardest of materials without dulling or wearing down prematurely. Prolonged Lifespan: Using water when drilling can help lubricate and cool the bit, extending its lifetime before replacement is needed. Effortless Operation: The durable construction of this hole cutter drill bit allows for simple and easy drilling of holes through difficult substances without excessive force or struggles typically associated with other core bits.