The Bosch Impact Control 35 Piece Drill and Screwdriver Bit Set is a versatile, customisable accessory set designed for heavy-duty drilling and fastening applications across a wide range of materials and trade environments. The screwdriver bits are manufactured from S2 Modified Steel with an optimised heat-treatment process, delivering extra-tough endurance under sustained use. An extended torsion zone makes each bit highly resistant to breakage, enabling reliable performance even when driven by high-torque impact drivers — making this set well suited to plant installations and heavy industrial work. Also included are HEX-9 MultiConstruction drill bits, designed for use across practically all interior building materials. Diamond-ground cutting edges provide excellent wear resistance, while the 2-flute U-shape geometry supports effective dust removal during drilling. A carbide tip ensures easy starting and good control, particularly useful for contractors working in confined or awkward spaces. All 35 bits feature a 1/4-inch external hex shank, ensuring compatibility with drill drivers, screwdrivers, and impact drivers. The set forms part of the Bosch Pick and Click system, which uses click-fitting slots to secure individually purchased packs — allowing tradespeople to build and customise their own bit collections and swap out worn packs as needed. Features and Benefits: • Extended torsion zone on screwdriver bits for impact driver compatibility and long-lasting durability • S2 Modified Steel with optimised heat treatment for extra-tough endurance in demanding applications • HEX-9 MultiConstruction drill bits with diamond-ground cutting edges for high wear resistance • Carbide-tipped drill bits for easy starting and precise control across interior materials • 1/4-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: 0.619 kg Bit Lengths: 25mm, 60mm, 50mm Shank: 1/4-inch external hex Contents: HEX-9 MultiConstruction drill bits: 3.0mm, 4.0mm, 5.0mm (x2), 6.0mm (x2), 8.0mm (x2) PH1 (x1), PH2 (x4), PH3 (x1) PZ2 (x2), PZ3 (x1) T15 (x1), T20 (x3), T25 (x3), T30 (x2), T40 (x1) Long bits: PH2, PZ2, T15, T20, T25, T30 Universal Holder Quick Release (x1)