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First vid is a just a bump key, most crap locks fall for that. The keys can be found all over the place.
Yup. But each are pretty specific. A Master Lock bump key is different from an Abus.. But not just "crap" locks are prone to them... Its a basic flaw in pin-tumblers. Any pin-tumbler can be "bumped". Disc tumblers can't be "bumped" but they are still quite pickable.
http://www.youtube.com/watch?v=G9sKnVeLsAk
^^ First vid is a just a bump key, most crap locks fall for that. The keys can be found all over the place.