A slight rotation ... but nothing more!

[Nightshadow]

yeah, that's the kind of thread i like

But, would you tell me if there is a way to identify cheap and expensive locks just by their outer appearance?

[jason]

This isn't a hard and fast rule but if the name has been ground/polished off (very popular - some locksmiths stamp their name and phone number on them) with some cylinders when I put my thumb on them and wiggle it the cheaper ones move about a bit more than the better quality ones because of the tolerances used.

Not a hard and fast rule because an old, good quality lock may have worn and moves more than a poor quality new one.

[raimundo]

Since you are in germany, nightshadow, I think that you have a really good resource availbable to you, Ask Reg if her club has a chapter near where you live.