The Bosch 12 Piece Extra Hard Screwdriver Bit Set is a versatile collection of 25mm bits designed for universal screw-driving with screwdrivers and drill drivers across a wide range of tasks. Each bit is manufactured from S2 Modified Steel and undergoes an optimised heat treatment process to achieve extra-hard quality. This construction ensures reliable performance across all common screw head types, whether on site or in the workshop. The tapered torsion zone is a key design feature, absorbing torque peaks, force, and vibrations during screw-driving to protect both the bit and the fastener. The 1/4" external hex shank provides a secure connection with maximum torque transmission, compatible with three-jaw chucks and 1/4" internal hex tool holders. With 12 bits covering Phillips (PH1, PH2, PH3), Pozidriv (PZ1, PZ2, PZ3), Torx (T15, T20, T25), and slotted (S0.6x4.5, S0.8x5.5) profiles, this set is well suited to carpenters, electricians, plumbers, and general contractors who need a reliable everyday bit set to hand. Features and Benefits: • S2 Modified Steel with optimised heat treatment for extra-hard, long-lasting performance • Tapered torsion zone absorbs torque peaks, force, and vibrations during use • 1/4" hex shank compatible with three-jaw chucks and 1/4" internal hex tool holders • 12-piece set covering Phillips, Pozidriv, Torx, and slotted profiles Specifications: Bit Length: 25mm Net Weight: 0.120kg Contents: PH1, PH2, PH3, PZ1, PZ2, PZ3, T15, T20, T25, S0.6x4.5, S0.8x5.5

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