Draper Expert 1/2" Sq. Dr. Hi-Torq® 12 Point Metric Socket Range - Draper Expert 33442, Expert Quality, 12 point sockets manufactured from chrome vanadium steel that's hardened and tempered with a polished finish. Each socket has a knurled ring for extra grip. Display packed. Draper Expert 33442 1/2" Sq. Dr. Hi-Torq® 12 Point Socket (27mm)