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View Full Version : How to make and use a bump key.



Ed Palmer
02-13-07, 12:45 PM
How to make and use a bump key. Opens nearly any lock in seconds, and much easier to do than lock picking. http://www.tlarson.com/blog




http://video.google.com/videoplay?docid=-5177213949300140850


Dutch television program demonstrating the technique ~snip~ were posted on various web sites. The issue has naturally concerned a good many people who have learned about it, since it seemingly shows that many of the kinds of locks typically used on residences are seemingly vulnerable to being bypassed through a fairly simple, effective technique.A "999" or bump key can be any key that fits a particular pin tumbler lock and that has been modified so that all of its cuts (or grooves) are made to the deepest allowable position as defined by each manufacturer. The term "fit" means that the key will enter the keyway (the front of the lock) but will not unlock it. The term "bumping" refers to the process of forcing the key to interact with the pin tumblers by "bumping" or rapping it with a plastic mallet while it is inserted into the lock. This process entails hitting the head of the key, causing it to rapidly move forward. When the key is struck correctly, each of the bottom pins is "bumped" upward for a brief instant, thus allowing the lock to be opened.


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