Bosch 2608587163 CYL-9 Ceramic Tile Drill Bit 7mm The Bosch 2608587163 drill bits are suitable for drilling through soft-to-medium hard tiles thanks to their simple flute-less design. They are compatible with both corded or cordless non-impact drills with a cylindrical shank system, and allow for dry drilling without lubrication. This makes working effortless and convenient for optimum productivity. In addition to this, they are extremely durable and long lasting. Features: Dry drilling without lubrication is possible, which makes working with this bit effortless and convenient Simple flute-less design makes these bits suitable for drilling through soft-to-medium hard tiles The bit is compatible with corded or cordless non-impact drills with a cylindrical shank system Long lasting and durable Specification: Diameter: 7mm Total length: 80mm