Can not do without it you.

Fits eg for Audi A6 Quattro. In Audi vehicles, you need the absolutely. In older Opel vehicles not for example. However, one must always follow the chromed cap. The thread pitch would be better chosen to be somewhat finer, thus turning remains without ratchet relatively unsatisfactory only with the handle. When the piston cpl. there is no longer fit the tool. Then handwork is announced.
But all in all good.