This BGS TECHNIC spiral socket set - screw extractor - 12,5 mm - 10 pcs - 5266 is composed of 9 square sockets 12 mm (3/8") which will allow you to efficiently loosen broken screw heads or nuts. Thanks to the spiral profile inside each socket, you will have no trouble loosening hexagonal screws. The sockets can be used with wrenches as well as screwdrivers. Their chrome-molybdenum steel design will be a plus to ensure a good life span. Choose quality tools from a traditional family business with strong values and a focus on expertise. For almost 50 years, BGS TECHNIC has been offering a wide range of tools, which are expanded daily. German quality to boot! Advantages: Fits both wrenches and screwdrivers The spiral profile will be a great ally to loosen defective nuts or screw heads Strong and durable sockets for heavy duty use Features: Wrench/screwdriver sockets, 12,5 mm (3/8") square: 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 19 mm Gross weight: 810 g Composition: Chrome-molybdenum steel Surface treatment: burnished, black A set of BGS TECHNIC spiral sockets - screw puller - 12,5 mm - 10 pcs - 5266Delivered in their original packaging