The Performance Tool W30937 7 Piece Impact U Joint & Adapter Set is a versatile and essential tool set designed for impact applications. It includes a collection of U joints and adapters that allow for greater flexibility and accessibility when working with sockets and fasteners. The set is designed for use with impact wrenches and features a durable construction to withstand high torque and heavy-duty use. The U joints and adapters are made from high-quality materials to ensure long-lasting performance and reliable functionality. This set is ideal for professional mechanics and DIY enthusiasts who need reliable and efficient tools for their projects.