Customisable set of robust screwdriver bits and impact control HSS twist drill bits. Screwdriver bits are ideal for heavy duty applications and feature an extended torsion zone that makes them extremely sturdy for extended working times (even withstanding the high power of impact drivers). S2 modified steel with optimised heat-treatment provide extra-tough endurance for high performance in plant installations, industrial work and heavy duty drilling in metal. Precision-ground, solid metal, impact control HSS twist drill bits with oxide-coated flutes are ideal for cutting through steel, metal and iron with reduced wear. All bits have a 1/4" external hex shank and are suitable for use with drill drivers, screwdrivers, and especially with impact drivers. Hex shank for maximum power transfer in standard three-jaw drills and hexagonal drill driver chucks. Part of the BoschPick and Clicksystem, which enables fully customisable bit collections and the easy replacement of old packs. For...