Robust double-ended screwdriver bit for heavy duty applications. S2 modified steel and an optimised heat treatment process ensure extra-tough endurance for high performance. Extended torsion zone makes it extremely sturdy for long-lasting work. Part of the Bosch Pick and Click system, which enables individually buildable accessory sets for fully customisable bit collections. Equipped with a ¼” external hex shank for use with drill drivers, screwdrivers and impact drivers.