Hex Socket Bit 4mm 1/2"Sq Drive - Sealey SBH017, Forged Chrome Vanadium steel socket with S2 steel bit. Sockets are heat treated and chrome plated with a fully polished mirror finish. Knurled ring for extra grip with oily fingers. Sealey SBH017 Hex Socket Bit 5mm 1/2"Sq Drive
