Bosch 2607002779 HEX-9 Multi Construction Drill Bit 8mm The Bosch 2607002779 is a multi purpose HEX-9 drill bit that will drill through practically all materials e.g. concrete, brick, wood, plastic and more. The 1/4\" shank provides optimum power output whilst the carbide centering tip ensures a precise start up and good control. This model is extremely durable thanks to its diamond ground cutting edges. Features: Suitable for drilling practically all materials including concrete, brick, wood, plastic, thin sheet metals, ceramic and tile 1/4\" hex shank for optimum power transfer The carbide centering tip ensures a precise start-up and good control when drilling Diamond-ground cutting edges for wear-resistant Specification: Pack Qty: 1 Diameter: 8mm Working length: 50mm Overall length: 100mm