Product Code: 50201 Draper Expert Multi - Drive® socket manufactured from chrome vanadium steel hardened and tempered with a micro satin finish. Each socket has a knurled ring for extra grip. Draper Expert Multi - Drive® socket allow them to be used with hexagon, bi - hexagon and Draper TX - STAR fixings. Packed on a plastic hanging rail that can also be used to store the socket in a tool box. Manufactured and tested generally in accordance with DIN3122 and ISO3315 Specifications