Expert BRIE117079B Bi-Hexagon Socket 1/2in Drive 13/16in The Britool 12-point 1/2 inch sockets are crafted in chrome vanadium steel and finished in high chrome. The OGV profile allows tightening torque to be applied to the sides rather than to the angles of the nut. This product is for manual use only. ASME B 107-1 ISO 1174-1. The Britool BRIE117079B Socket 12 Point Standard 1/2 inch Drive 13/16 inch has the following dimensions: Size: 13/16 AF Length: 38mm Weight: 92g