Need a versatile, high-performance set for heavy-duty screwdriving and precise drilling in multiple materials the bosch 35-piece pro impact mixed drill & screwdriver bit set is engineered for interior fitters, installers, and professionals who require robust screwdriver bits and multi-material drill bits for demanding tasks. The impact-rated screwdriver bits are crafted from heat-treated modified steel, offering exceptional strength and resistance to high torque. Their extended torsion zone absorbs torque stress at the tip, reducing the risk of breakage and ensuring durability. Each bit is colour-coded and features laser markings, allowing for quick identification of the size and head type. For precision drilling, the set includes expert hex-9 multi construction drill bits, featuring bosch centering geometry for accurate hole starting. These bits have hardwearing cutting edges and carbide tips, ensuring effortless drilling in a variety of materials, while the specially designed flutes remove chips efficiently for a longer lifespan. Contents 1x ph1 x 25mm 4x ph2 x 25mm 1x ph3 x 25mm 3x pz2 x 25mm 1x pz3 x 25mm 1x t15 x 25mm 3x t20 x 25mm 3x t25 x 25mm 2x t30 x 25mm 1x t40 x 25mm 1x ph2 x 55mm 1x pz2 x 55mm 1x t15 x 55mm 1x t20 x 55mm 1x t25 x 55mm 1x t30 x 55mm 1x 3mm x 90mm expert hex-9 multi construction drill bit 1x 4mm x 90mm expert hex-9 multi construction drill bit 2x 5mm x 100mm expert hex-9 multi construction drill bit 2x 6mm x 100mm expert hex-9 multi construction...