Bosch set EXPERT HEX-9 Hard Ceramic Drill Bit Set 5 x 90 mm 5 pcs 2608902315

Features:
Lasts up to 10x longer than a Bosch CYL-9 Soft Ceramic Drill Bit
Long Life drilling hard tiles
Exceptional durability is built into drill bits with Bosch Carbide Technology – the hardest metal is integrated into the tip using advanced design and manufacturing techniques.
Start holes accurately with a specially designed centring tip. This helps you to be precise in your drilling every time, working efficiently for hundreds of clean holes.
High-performance carbide tip manufactured by fine grinding. We can grind razor-sharp edges in the hardest metal: This enables complex, highly efficient designs.
Efficient drilling in hard materials with a multi-faceted tip: The advanced design with multiple angles, faces and edges make these drill bits highly effective.
Hex shank for a strong connection and maximum torque transmission in three-jaw chucks and ¼"" internal hex tool holders

As 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 Hard Ceramic 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 Hard Ceramic Drill Bit is designed for drilling ceramics and can drill holes in hard tiles without lubricant or cooling.