How do master keys work?

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How come Key A can open Lock A. Key B can open Lock B. But not lock A. And key C can open all the locks? Doesn’t that mean A and B should be able to open each other?

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Anonymous 0 Comments

A keyhole unlocks when a specific combination is inserted (usually represented by numbers, but we will use letters). Key A is xxxAx, Key B is xxxBx, and Key C is xxxCx. Keyhole A is configured to accept xxxAx and xxxCx. Keyhole B is configured to accept xxxBx and xxxCx. Here is a video that explains it and provides good visuals [https://youtu.be/8U6rdI_uG2c](https://youtu.be/8U6rdI_uG2c)

If you find this interesting, try watching more lockpicking videos, there are even more interesting things lock makers do 😃

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