by Fulleri » 11 Aug 2007 9:35
hi all,
this topic has been already partly covered, but I think it still deserves some thoughts.
Basicly, rapping a cylinder lock open involves putting some turning pressure on the core (e.g. pushing the cam) then slamming it a few times on a hard surface. The pins jumps up like if using a pick gun, and the cylinder turns.
I have used a slightly different method, i.e. I put a normal tension wrench in the keyway before slamming the lock. Thusly I could very easily open two Yale 5-pin brass padlocks and a very heavy Cisa padlock that had resisted me for a long time. Also I can open many of my tumbler locks.
I should further experiment to decide if the turning pressure must be light or heavy; if it is best slamming the lock onto a hard (metal) or a softer (wood) surface, etc. Has anybody any experience in this?
However (e.g, Weber in LS&S) tells us that instead of slamming the lock onto a flat surface, one can also rap (tap) the lock with a mallet. In principle, this should be more or less the same, but I wasn't able to get any results. Any suggestion?
Note: this is not like rapping a padlock to retract the tooth that holds the shackle, of course.
In this line of thoughts, I wonder
- if one could rap a lock when it still is within the door frame, hitting the small portion that protrudes from it.
- If would be feasible to "vibrate" a lock from outside by using a Black&Decker drill set on "hammer" or one of those vibrating tools used to engrave glass or steel (not mentioning other vibrating items...).
Shouldn't be much different than using an electric pick gun... only done from outside the lock.
Maybe silly questions, but who knows?
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