I bought this set of adapters based on the reviews and unfortunately this time resorted to the "loo". Wanted to solve a slightly firmer screw on the car and then me is one of the adapter "abegbrochen". Did then borrowed from my neighbor my tool and so I could loosen the screw then. Apparently, I've caught a Montagsset. The exchange at retailers "inox-screw" presents itself somewhat difficult, since it is expected that I go for Porto in advance and the trader then decides whether there is a material error or not. I would have expected a pre-paid return shipping label, and if it is his opinion no material errors he should throw away the scrap. I have no desire other than the purchase price still to pay postage and then having to diskussieren end up with a recalcitrant seller. Anyway, can in future also elsewhere shopping, the attitude of the customer is at fault and must prove to me that there was a material error, it can not be, then I spend my money somewhere else without problems from. I would like to give more stars, because I'm sure a not to have received proper set Ansonnsten the other recessions were indeed turned out worse, but I have to evaluate what I have received. The manufacturer must check the goods better before sending.