Up to 50x more robust than a Bosch 2607001528 Extra Hard Bit Need reliable screwdriver bits for your next screwdriving job? Bits that last long and perform well in heavy-duty applications? Try the PRO Impact Set. We designed the bits for strength and resistence to high torque. A Pick and Click bit holder helps you keep your bits well organised. PRO Impact Set is a great choice for installers looking for robust, heavy-duty screwdriver bits. The bits are made from heat-treated modified steel for outstanding strength and resistance to high torque. Their torsion zone absorbs the torque stress at the bits’ tip to make sure they won’t break. Each bit features a colour-coded ring indicating the head type and laser markings helping you pick out the size you need. 1/4" Impact rated Hex shank for use in impact driver and drill driver Tested in Bosch labs according to Bosch standard procedures. Features and Benefits: • Up to 50x more robust than a Bosch 2607001528 Extra Hard Bit • 1/4" Impact rated Hex shank for use in impact driver and drill driver • For driving screws efficiently, eg when installing all types of panels, equipment, and fixtures • Highly efficient for installers, electricians, metalworkers, and woodworkers: Robust Specifications: Dimensions: PH2; PZ2; T20; T25; T30 Length mm: 60; 50; 50; 50