Wera joker combination ratchet spanners metric wera 05073277001 this 17mm joker combination ratcheting wrench from wera offers a unique holding function thanks to the metal plate in the jaw which reduces the risk of dropping nuts and bolts the ratchet mechanism at the ring end enables the spanner to be used in very confined spaces made from high performance chrome molybdenum steel with a nickel chrome coating wera 05073277001 joker combi ratcheting wrench metric 17mm