The Bosch CYL-3 drill bit is up to 5 times more precise. On today’s job sites, you need to work with many different materials, and you never know what you will drill into next. Finding the right drill bit can be difficult and time-consuming unless you have the EXPERT MultiConstruction drill bit. This highly versatile bit can drill accurately and without slipping into hard materials such as granite, thanks to its sharp tip and advanced geometric design. Made from optimized carbide using our fine grinding technique, it can also be used on concrete, brick, soft tiles, wood, and metal. You can always achieve a professional result, no matter the material. The Bosch EXPERT HEX-9 MultiConstruction bit is the essential bit that should never be missing from your toolbox: it never leaves a job half-finished and won’t waste your time looking for the right bit. Hexagonal shank for a solid connection and maximum torque transmission in three-jaw chucks and internal hexagonal tool holders of ¼".