Wera 05003642001 8796 sc zyklop short flexible lock extension 1 2in drive wera 05003642001 this short zyklop extension from wera is made from brushed chrome plated chrome vanadium and incorporates a flexible lock system for permanent interlocking or rapid change of accessories and a free turning sleeve for swift tightening or loosening of screws and nuts it has a 1 2in square drive socket with ball lock wera 05003642001 8796 sc zyklop short flexible lock extension 1 2in drive