This Teng Tools socket is a professional hexagonal 1/2 inch square drive socket, produced in accordance with ISO9000 and AS954 specifications for increased torque and to reduce the risk of rounding fasteners.
The socket is manufactured from strong chrome vanadium steel with a satin finish.

The TENM1205136 1/2inch square drive socket has the following specifications:
Size: 13mm.
Length: 38mm.