Lasts up to 10x longer than a standard tile drill bitAs wall tiles have become larger and harder, drilling holes in them has become very demanding on a tile drill bit. That’s why Bosch has developed the Expert HardCeramic Drill Bit, which is capable of dry-drilling hard ceramics and lasts far longer than our benchmark drill bit for tiles.This specialist hard ceramic bit uses Bosch’s Carbide Technology – the hardest of metals – and combines it with an advanced multi-faceted tip design that shares the workload over multiple asymmetric faces. This complex drill bit tip, achievable through fine grinding manufacturing technique, also enables a precise start without skidding and scratching.The Bosch Expert HEX-9 HardCeramic Drill Bit drill bit is designed for drilling ceramics and can drill holes in hard tiles without lubricant or cooling.Hex shank for maximum power transfer in standard three-jaw drills and hexagonal drill driver chucks. Technical data: Diameter (D) mm: 8,00 Total length (L2) mm: 90