If you dont understand how a lock works then you cannot fix it if the lock to your front door breaks and a locksmith isnt available for several hours then most people have no choice but to leave the door unlocked they lack the basic knowledge that is necessary to understand how basic items in their home works why learn lock picking. The pin tumbler lock makes up about 90 of locks used today and is what you will find on about every deadbolt door lock and padlock they are extremely simple in their design and essentially 6000 year old technology it is also often thought that learning how to pick a lock requires some zen like focus
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