Draper 6 Point Metric Socket, 3/8" Sq. Dr., 13mm

Amazon

High-quality 6 point metric drive sockets Made from hardened and tempered chrome vanadium steel material Socket has a knurled ring for extra grip With a micro satin finish An essential tool for vehicle technicians and garage mechanics

Electrical World

Expert Quality, 6 point socket manufactured from chrome vanadium steel hardened, and tempered with a micro satin finish. Each socket has a knurled ring for extra grip. Display packed.