Wera 05042671001 781 A 1/4" Connection parts, 781 A/C x 1/2 x 36mm x 1/4"
Length 36mm. Connection part 1/4" square head socket to 1/2" external square head. 1/4" to 1/2" connection part. Type Connection Parts. Drive Type 1/4". During that process you will be issued with an RMA number.