Expert Quality, socket fitted with a hexagonal bit, with an overall length of 55mm. All socket manufactured from hardened and tempered chrome vanadium steel with sand blasted bits of S2 silicon steel. Each socket has a knurled ring for extra grip. Features and Benefits • Expert Quality • S2 silicon steel bit • Chrome vanadium steel hardened, tempered, chrome plated and polished socket Contents 1 x Hexagonal Socket Bits, 1/2" Sq. Dr., 12mm