This bosch security torx t20 screwdriver bit, supplied as a pack of 2 x 25mm bits, is ideal for tackling security torx fasteners across a wide range of applications including automotive work, white goods, and general trade use. The t20 size is widely used in professional environments and is a popular choice for both workshop and on-site tasks. Constructed from s2 modified steel with an optimised heat treatment process, these bits achieve extra-hard quality that stands up to regular, demanding use. The tapered torsion zone absorbs force and vibrations during screw-driving, effectively managing torque peaks to help protect fasteners and prolong the life of the bit. The 1 4 external hex shank provides a strong, reliable connection in three-jaw chucks and 1 4 internal hex tool holders, with full compatibility for use in screwdrivers and drill drivers. Features and benefits: s2 modified steel construction with optimised heat treatment for extra-hard quality tapered torsion zone absorbs vibrations and handles torque peaks with ease 1 4 external hex shank for a strong, high-torque connection compatible with screwdrivers and drill drivers specifications: bit size: t20 length: 25mm pack quantity: 2 shank: 1 4 external hex contents: pack of 2