Description: 12-piece/set Screwdriver Bit Set, Crafted with uality S2 alloy steel bits for having a proper hardness and torsion that make the bits not easy to break and wear. Magnetic hex bit set, it can be firmly fixed on screwdrivers and keep screws stuck to them, can improve your work efficiency. Fit for hand screwdrivers, electric screwdrivers, any 1/4 inch hex shank power drill. Cover all commonly seen screws in precision maintenance. they can not only be applied in such complex electronic devices as mobile phones, game consoles, and cameras, but also such daily items as glasses, children's toys, and lamps. Each screwdriver is labeled with the dimension and type in a consumer-friendly way. Easy to carry, it is the ideal tool for the automotive, household, manufacturing, construction, home improvement and other industries. Specification: Material: S2 Alloy Steel Size Chart: Length: 5cm/1.97inch,10cm/3.94inch(Depending on Your Choice) Package Includes: 12 Pieces Screwdriver Bits Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!