The Bosch 35 Piece Impact HSS Drill Bit and Screwdriver Bit Set is a versatile, heavy-duty accessory set designed for demanding drilling and fastening applications in metal, steel, and iron. The screwdriver bits are manufactured from S2 Modified Steel with an optimised heat-treatment process, incorporating an extended torsion zone that absorbs the high torque output of impact drivers. This makes them exceptionally durable during extended working periods — ideal for plant installations, industrial work, and high-cycle fastening tasks. The HSS twist drill bits are precision-ground from solid metal and feature an oxide-coated flute for reduced wear and excellent surface quality when cutting through steel and iron. All 35 bits share a ¼-inch external hex shank, ensuring compatibility with drill drivers, screwdrivers, and impact drivers alike. The set forms part of the Bosch Pick and Click system, which allows tradespeople to build a fully customisable bit collection. Click-fitting slots securely hold individually purchased accessory packs, making it straightforward to expand the set or replace worn packs as needed. Features and Benefits: • S2 Modified Steel with optimised heat treatment for extra-tough endurance under heavy use • Extended torsion zone on screwdriver bits withstands the high power of impact drivers • Precision-ground HSS drill bits with oxide-coated flute for reduced wear when drilling metal • ¼-inch external hex shank compatible with drill drivers, screwdrivers, and impact drivers • Part of the Bosch Pick and Click system for a fully customisable, expandable bit collection Specifications: Net Weight: 0.648 kg Shank: ¼-inch external hex Drill Bit Sizes: 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 10.0 mm Contents: HSS Drill Bits: 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 10.0 mm PH1 x1, PH2 x4, PH3 x1 PZ2 x2, PZ3 x1 T15 x1, T20 x3, T25 x3, T30 x2, T40 x1 PH2 x1, PZ2 x1, T15 x1, T20 x1, T25 x1, T30 x1 Universal Holder Quick Release x1