The Bosch 31 Piece Impact Control Screwdriver Bit Set is a comprehensive, customisable bit set engineered for heavy-duty applications, including use with high-torque impact drivers. Constructed from S2 Modified Steel with an optimised heat-treatment process, each bit is built to withstand the demands of intensive use in plant installations, heavy industrial work, and professional contracting. The extended torsion zone absorbs the high rotational forces generated by impact drivers, reducing the risk of bit breakage and extending working life. The 1/4-inch external hex shank ensures a secure connection with maximum torque transmission, making these bits compatible with drill drivers, screwdrivers, and impact drivers fitted with standard 1/4" internal hex tool holders. Part of the Bosch Pick and Click system, the set uses click-fitting slots to securely hold individually purchased bit packs, allowing tradespeople to build a fully personalised collection. Old or worn packs can be swapped out independently, making replacement straightforward and cost-effective. Features and Benefits: • Extended torsion zone absorbs impact forces for improved durability and reduced breakage • S2 Modified Steel with optimised heat treatment for extra-tough, long-lasting performance • 1/4" external hex shank for strong connection and maximum torque transmission • Compatible with drill drivers, screwdrivers, and impact drivers • Part of the Bosch Pick and Click system for fully customisable, buildable bit collections • Click-fitting slots allow easy replacement of individual bit packs Specifications: Net Weight: 0.580 kg Bit Lengths: 25mm, 50mm, 60mm Shank: 1/4" external hex Dimensions: PH1, PH2, PH3, PZ2, PZ3, T15, T20, T25, T30, SL1x5.5 Contents: PH1, PH2 (3x), PH3, PZ2 (3x), PZ3, T15 (2x), T20 (3x), T25 (3x), T30 (3x), T40, PH1-PH2, PH2-PH3, PH2-PZ2 (2x), SL1x5.5, T15-T20 (2x), T25-T30, Universal Holder Quick Release, Storage Box