Bosch 2608900604 EXPERT CYL-9 Multi Construction Drill Bit 4 × 40mmThe Bosch EXPERT CYL-9 Multi Construction Drill Bit is designed for drilling a wide range of materials including concrete, brick, wood, and plastic. Its patented Bosch Centering Geometry and specially-designed centering tip ensure accurate hole starting. This drill bit is suitable for professionals needing a versatile tool for various construction site tasks.Features Patented Bosch Centering Geometry for accurate drilling Specially-designed centering tip for precise hole starting High-performance carbide tip manufactured by fine grinding Optimised dust extraction channel for fast, efficient drillingSpecifications Brand: Bosch MPN: 2608900604 EAN: 4059952538976 Diameter: 4mm Working length: 40mm Total length: 75mm Shank: Straight