This Teng Tools socket is a professional bi-hexagon 3/4in Drive socket. The socket is in imperial AF size, and is manufactured from chrome vanadium steel with a satin finish.

The socket is produced in accordance with ISO 9000 and AS954 specifications for increased torque and reduced risk of rounding fasteners.

The TENM340128 bi-hexagon 3/4in Drive socket has the following specification:
AF Size: 7/8 inch.
Length: 51mm.