A good padlock is one that can be opened with a bump key. The best way to open a lock is by using the same key as it was originally made for, but if you don’t have access to this then there are other ways of opening locks without keys. One method involves inserting an object into the gap between the shackle and body of the lock which will cause enough pressure on pins inside so they fall out allowing you to turn your chosen tool (bump key) in order to unlock it. This process takes time and skill however, so practice makes perfect.
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