7Pcs M14 Threaded Diamond Tile Drill Bit Set Hole Saw for Tile Marble Drilling 20-68mm Size Suitable for Various Drilling Needs

Diamond Core Bit Set: Utilizes advanced vacuum brazing technology, lasting 3–5 times longer than conventional electroplated products, ensuring higher efficiency. Features high-quality abrasive for faster cutting and smoother drilling. Dry drilling without water supply.For M14 angle grindersUsed for drilling holes in marble, ceramic tile, granite, pebbles, walls, and other materials.The standard M14 thread can be quickly mounted on an angle grinder with an M14 thread. With an adapter, you can use it on equipment such as hand drills.The package includesa 7-piece set of porcelain tile drill bits