Bosch 12 Piece Extra Hard Screwdriver Bit Set

The Bosch 12 Piece Extra Hard Screwdriver Bit Set is a set of screwdriver bits designed for robust screwdriving with drill drivers. Modern drill drivers deliver high torque that can break standard bits. These Extra Hard bits are built to resist that torque, so you can drive screws with confidence. The bits are made from heat-treated S2 modified steel for hardness and durability. They are colour-coded, with type and size markings, so you can pick out the right bit quickly. The set covers PH, PZ and T (Torx) sizes and comes with a bit holder. The hex shank gives a strong connection and maximum torque transmission in three-jaw chucks and ¼" internal hex tool holders. These bits are not suitable for use with impact drivers.