What is the difference between a master key and a skeleton key?

Is a master key the same as a skeleton key?

Although a skeleton key is a “master key,” not all skeleton keys are the same. The size and cut of the key's bit, as well as the diameter of its barrel, determine whether it fits with a lock. Additionally, antique (or reproduction antique) skeleton keys are known for their intricate details.

How do I know if I have master key?

You can test whether or not you have a Master key by watching the Security light as you insert your key into the ignition. If the Security light turns off immediately after insertion of the key, it is a Master key. If the security light stays solid for a few seconds after insertion of the key, it is a Valet key."

Can a master key open any lock?

When lock rekeying into a master key system, two keys are created: Change key: This key can open the master lock, but only the master lock. It cannot be used inside any other locks you have. Master key: The master key can open all locks you have in your residential or commercial property.