The Bosch Expert 4 Piece CYL-9 Multi Construction Drill Bit Set is a versatile multi-material drill bit set designed to handle the unpredictable demands of the modern construction site. Whether you're drilling into concrete, brick, soft tile, wood, metal, or even hard materials such as granite, this set covers the full range of common substrates without the need to switch between specialist bits. Up to 5x more precise than the Bosch CYL-3, the CYL-9 delivers consistently clean, accurate holes across all these materials. The performance comes from a combination of fine-ground, optimised carbide and Bosch's Centering Geometry. The specially designed centring tip ensures a slip-free start on even the hardest surfaces, while the fluted shaft actively channels dust and debris away from the cutting zone for faster, cleaner drilling. Supplied in four diameters — 4mm, 5mm, 6mm and 8mm — this set is well suited to general construction, fixing and installation work where different materials and hole sizes are encountered throughout the day. The cylindrical shank is compatible with standard three-jaw drill chucks, making these bits straightforward to use with most corded and cordless drills. Features and Benefits: • Up to 5x more precise than the Bosch CYL-3 drill bit • Drills accurately into granite, concrete, brick, soft tile, wood and metal • Bosch Centering Geometry provides a slip-free start and stabilised action • Fine-ground optimised carbide tip for razor-sharp cutting performance • Optimised dust extraction channel for efficient chip removal and faster drilling • Cylindrical shank compatible with standard three-jaw drill chucks • Four-piece set covering 4mm, 5mm, 6mm and 8mm diameters Specifications: Diameter (mm): 4, 5, 6, 8 Working Length (mm): 40, 50, 60, 80 Total Length (mm): 75, 85, 100, 120 Net Weight: 0.100 kg Contents: EXPERT Multi Construction CYL-9 Drill Bit — 4mm (40mm working length) EXPERT Multi Construction CYL-9 Drill Bit — 5mm (50mm working length) EXP

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