Wera 05003582001 8794 sb zyklop short extension free turning sleeve 3 8in wera 05003582001 this short zyklop extension from wera is made from brushed chrome plated chrome vanadium and has an easy to grip free turning sleeve for the rapid tightening of screws and nuts this extension has a 3 8in square drive socket with a ball lock wera 05003582001 8794 sb zyklop short extension free turning sleeve 3 8in