The external hex socket wrench from C.K Magma is a high-quality socket insert designed for a variety of applications in workshops and DIY projects. With a key size of 18 mm and a connection size of 1/2", this socket provides a precise fit and reliable performance. The insert is made from durable chrome-vanadium steel, known for its longevity and resilience. With 18 teeth, it allows for effective power transmission and ensures safe handling. The shaft measures 25.4 mm (1") and is compatible with common tools. This socket insert is ideal for professional mechanics as well as hobbyists who value quality and functionality. It is excellent for loosening and tightening screws and bolts in various applications, from the automotive industry to general repair work.