The Bosch Impact Control Screwdriver Bit Set 36 piece is a collection of robust bits capable of withstanding powerful impact drivers - making them ideal for heavy duty applications. Each bit enjoys an extended torsion zone, making them sturdy and enduring. An optimised heat-treatment process combined with S2 Modified Steel delivers a high endurance product perfect for heavy industrial work. Included in the set are nutsetters, in addition to a magnetic Impact Control Universal Holder and Impact Control Universal Holder Quick Release. These additions allow the user to achieve an extra-firm grip as well as execute quick and easy bit changes. Features: Customisable set with highly robust bits. Extended torsion zone makes it extremely sturdy for long-lasting work. Ideal for heavy duty use.