Glatter Diamantkernbohrer 40 mm is a versatile core drill for cutting openings in hard materials such as ceramic, porcelain, stone and glass. It can be used as a Beckenlochoeffner, Splbeckenschneider, Blumentopfreibahle, and more. The bit features a 40 mm diameter and a 5 mm cutting width, built as a single piece with an M14 thread shank for quick mounting on standard rotary tools. Working depth is 40–60 mm. Key benefits - Delivers clean, accurate holes in tough materials with durable diamond cutting edges. - One piece with M14 shank ensures solid grip and easy tool changes. - Depth range of 40–60 mm supports consistent hole sizing and depth control. - Suitable for renovation and installation tasks with reliable performance and predictable results. Specifications - Diameter: 40 mm - Cutting width: 5 mm - Shank: M14 thread - Depth range: 40–60 mm - Construction: diamond core, single piece Applications and scenarios - Drill a 40 mm faucet hole in a ceramic basin or sink during bathroom renovation. - Create drainage or vent holes in ceramic flower pots or tile backsplashes. - Enlarge or ream openings in countertops or wall tiles for plumbing or electrical pass-throughs. This tool is designed for professional results with compatibility on most standard rotary tools. It emphasizes function, material performance, and precise sizing to support reliable renovations and installations.