Wera 05003584001 8794 b zyklop wobble extension 3 8in drive wera 05003584001 this zyklop wobble extension from wera is made from brushed chrome plated chrome vanadium and swivels through 15 this extension has a 3 8in square drive socket with a ball lock wera 05003584001 8794 b zyklop wobble extension 3 8in drive