Unfortunately SOLINGEN no longer stands for quality

The expensive paid Nagelschere of DOVO, Solingen has unfortunately failed after a short time in service.
Reason: the two parts are loose and that the scissors then provides no reasonable average earnings more likely clear to everyone. Dovo perfect finish - exactly screwed and adjusted: Here, the quality part is so touted.
Unfortunately, that was an empty promise.
It may also not be the intention that I now every time I want to use the scissors, must tighten the screw.