The Bosch 35 Piece Drill and Screwdriver Bit Set for Wood is a comprehensive mixed bit set designed for carpenters, joiners, and contractors who need a single organised solution for drilling and screwdriving tasks. The screwdriver bits are manufactured from S2 Modified Steel with an optimised heat treatment process, delivering extra-hard durability and consistent torque performance across all bit types. All bits are colour-coded for quick identification, reducing time spent searching for the right profile on site. The set also includes HSS (high-speed steel) drill bits with centring tips for accurate hole positioning in both soft and hard wood. Both the screwdriver bits and drill bits feature a 1/4-inch external hex shank, making them compatible with three-jaw chucks and 1/4″ internal hex tool holders. The drill bits use a cylindrical shank system suitable for corded and cordless impact drills. The complete set is housed in a robust storage case with a clear view of contents, making it practical for site use and safe to transport. Features and Benefits: • S2 Modified Steel construction with optimised heat treatment for extra-hard, long-lasting performance • HSS drill bits with centring tip for precise, accurate drilling in soft and hard wood • Colour-coded bits for fast identification of the correct profile • 1/4″ hex shank compatible with three-jaw chucks and hex tool holders • Cylindrical shank drill bits suitable for corded and cordless impact drills • Robust storage case provides clear view of contents and safe transport Contents: PH1, PH2, PH3, PZ1, PZ2, PZ3, S 3/4/5/6, HEX 3/4/5/6, TH10, TH15, TH20 (x2), TH25, TH27, TH30, TH40, Nutsetter 6/8/10mm, HSS 2.0/3.0/4.0/5.0/6.0/8.0mm, Double blade PH2/PZ2, Double blade TH20/TH25 Specifications: Net Weight: 0.549kg Screwdriver Bit Length: 25mm (PH1, PH2, PH3, PZ1, PZ2, PZ3), 50mm Drill Bit Lengths: 67mm, 72mm, 87mm, 97mm, 102mm, 112mm Nutsetter Length: 60mm Double Blade Length: 60mm