The Bosch EXPERT 5 Piece HEX-9 Multi Construction Drill Bit Set is a versatile multi-material drill bit set designed for professional tradespeople working across a wide range of substrates on site. Engineered to deliver up to 5x more precision than the Bosch CYL-3, this set is built around Bosch’s advanced centering geometry, which ensures a slip-free start and stabilised action for accurate, clean holes every time. The specially designed centring tip prevents skidding even on hard, challenging surfaces such as granite, making it equally well-suited to concrete, brick, soft tile, wood, and metal. The fine-ground, high-performance carbide tip enables razor-sharp edges and complex cutting geometry, while the optimised dust extraction channel works in tandem with the fluting to clear material efficiently during drilling. The HEX-9 shank provides a secure, positive connection in both three-jaw chucks and ¼” internal hex tool holders, ensuring maximum torque transmission throughout. Ideal for contractors, builders, and multi-trade professionals who need a single reliable drill bit that performs consistently across substrates without switching bits mid-job. Features and Benefits: • Up to 5x more precise than the Bosch CYL-3 drill bit • Bosch Centering Geometry for a slip-free start and stabilised, accurate drilling action • Specially designed centring tip prevents skidding on hard materials including granite • Drills concrete, brick, soft tile, wood, and metal from a single bit • Fine-ground high-performance carbide tip for razor-sharp, long-lasting cutting edges • Optimised dust extraction channel and fluting for efficient chip removal and fast drilling • HEX-9 shank compatible with three-jaw chucks and ¼” internal hex tool holders Specifications: Total length: 100mm (all five bits) Working length: 60mm (5.5mm, 6mm, 6mm, 7mm bits) / 50mm (8mm bit) Diameters included: 5.5mm, 6mm, 6mm, 7mm, 8mm Net weight: 0.126kg Contents: EXPERT Multi Construction HEX-9 Drill Bit 5.5 / 6 / 6 / 7 / 8mm — 5 piece set