This is a really long video but well worth your time if you are interested in the mechanics behind a safe. It’s a great video by a master safe-cracker talking about non-destructive safe-cracking – from robotics to manipulation to lots more. It is a very informative video and really illustrates why you need a very powerful safe to make sure you have your valuables protected as best they can be. It is fascinating!
DEFCON 14: Safecracking Without a Trace