Erreur probable de description
If the body of the closure corresponds to what has been described in the website, ie chromed steel material, it is apparently not the same with the key, whose handle is obviously not in chrome steel. In any case, the handle of one of my 3 keys did not resist, with the necessary effort, to open one of my threshing closures. And the observation of the break suggests that the handle is not made of steel. Gilletarom.