The Bosch 35 Piece Drill and Screwdriver Bit Set for Masonry is a comprehensive accessory kit designed for professional drilling and screw-driving applications across a wide range of materials and fastener types. The screwdriver bits are manufactured from S2 Modified Steel with an optimised heat treatment process, delivering extra-hard quality suited to demanding trade use. A tapered torsion zone absorbs torque peaks and vibrations during screw-driving, helping to protect both the bit and the fastener head. All bits are colour-coded for fast identification, keeping work efficient on site. The set also includes CYL-3 masonry drill bits engineered for lasting performance on abrasive materials such as concrete and natural stone. The screwdriver bits feature a 1/4-inch external hex shank, compatible with standard screwdrivers and drill drivers, while the masonry drill bits use a cylindrical shank system suitable for corded or cordless rotary drills. The entire set is housed in a robust storage case with a clear layout for easy access, safe transport, and organised storage on site. Features and Benefits: • S2 Modified Steel construction with optimised heat treatment for extra-hard, long-lasting performance • Tapered torsion zone absorbs torque peaks and vibrations to reduce bit wear and fastener damage • CYL-3 masonry drill bits suited to concrete and natural stone drilling • Colour-coded bits for quick identification of the correct type during use • 1/4-inch external hex shank compatible with screwdrivers and drill drivers • Cylindrical shank masonry bits compatible with corded and cordless rotary drills • Supplied in a robust storage case for safe transport and organised site use Specifications: Net Weight: 0.639 kg Screwdriver bit length: 25 mm (PH1, PH2, PH3, PZ1, PZ2, PZ3) Screwdriver bit length: 50 mm (extended bits) CYL-3 masonry drill bit lengths: 70 mm, 75 mm, 85 mm, 100 mm, 150 mm Nutsetter length: 60 mm Double blade bit length: 60 mm Shank type (screwdriver bits): 1/4-inch external hex Shank type (masonry drill bits): Cylindrical 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 8 mm, 10 mm, 13 mm CYL-3 masonry drill bits: 3.0, 4.0, 5.0, 5.5, 6.0, 8.0 mm Double blade PH2/PZ2 Double blade TH20/TH25 Magnetic universal holder Universal holder with quick-change function