Combination lock means a lock with 1 wheel (safe-style) or one with dials?
Recently I saw a special feeler tool for dials and I always wanted to ask for more information about it.
It's the last one on
this page, Nr 30650, Abtastmesser "Mini"
Ok, it's pretty obvious how it works: You put the tool next to the dials and turn them, but can anybody tell more about it?