8pcs Diamond Hole Saw Set Diamond Drill Core Bits, M14 20/25/32/35/40/50/60/68 MM with 2 Saw Blades, Hole Saw Cutting Drill, Drilling Tools for Drilling Core Tiles Stoneware Portable Granite

Robust and durable materials: The cutting blade of the diamond hole saw is made of a premium diamond that provides more efficient performance than traditional carbide or bimetal hole saws.
Easy installation: The diamond drill bits for ceramics should be connected to an angle grinder. Drill a pilot hole to start drilling to prevent the saw from wandering from the desired hole.
High Performance: The ceramic pot drill bits have enlarged holes on the body to ensure that the filing can be moved efficiently while the blades rotate at high speed.
Nice Portable Case: The 10pcs diamond core bits come with a compact box where the bits are not in use. You don't have to worry about any of them missing.
Wide application: The core extractor ensures a clean and precise hole in the hardest and most abrasive materials such as tile, granite, marble, other stone and porcelain.