The Bosch 35 Piece Drill and Screwdriver Bit Set is a comprehensive accessory kit designed for professional drilling and screw-driving across a wide range of materials and applications. Supplied with a 1/4-inch external hex shank, it is compatible with standard screwdrivers and drill drivers, making it a practical choice for contractors, electricians, carpenters, and general tradespeople. The screwdriver bits are manufactured from S2 Modified Steel with an optimised heat treatment process, delivering the extra-hard quality needed for demanding, high-use environments. A tapered torsion zone is built into each bit to absorb force and vibrations, handling torque peaks without compromising the tip. All bits are colour-coded for fast identification on the job. The set also includes precision-ground HSS-G (high-speed steel) drill bits, suitable for fast, clean drilling in metal and plastics. Covering Phillips, Pozidriv, slotted, hex, Torx, and nutsetter formats, plus double-blade combination bits, this is a genuinely versatile set for everyday trade use. Everything is stored in a robust carry case that keeps contents visible, organised, and protected during transport and on site. Features and Benefits: • S2 Modified Steel screwdriver bits with optimised heat treatment for extra-hard, long-lasting performance • Tapered torsion zone absorbs force and vibrations, protecting bits under high torque • Colour-coded bits for quick identification and reduced downtime on site • Precision-ground HSS-G drill bits for fast drilling in metal and plastics • 1/4-inch external hex shank compatible with screwdrivers and drill drivers • Robust storage case keeps the full set organised, visible, and protected Specifications: Net Weight: 0.549 kg Screwdriver Bit Length: 25 mm (PH1, PH2, PH3, PZ1, PZ2) / 50 mm (PZ3) HSS-G Drill Bit Lengths: 70 mm, 74 mm, 83 mm, 88 mm, 99 mm, 105 mm Double Blade Bit Length: 60 mm Shank: 1/4-inch external hex Contents: PH1, PH2, PH3, PZ1, PZ2, PZ3, S3, S4, S5, S6, H3, H4, H5, H6, T10, T15, T20 (x2), T25, T27, T30, T40, Nutsetter 8 mm, 10 mm, 13 mm, HSS-G 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm, 5.0 mm, 6.0 mm, Double Blade PH2/PZ2, Double Blade T20/T25