These are the benefits our clients enjoy the most: Changing a standard pin tumbler to accommodate a master key system, requires adding a master wafer which is placed between the key pin and driver pin. To lift the key pins to the correct height, a key must have the right set of grooves in it.

When the appropriate key is inserted, both pins are lifted so that they rest on opposite sides of the shear line. These pin tumbler locks include a driver pin and a key pin. To make this system work, pin tumbler locks are often used. This diagram shows the four main types of keys involved in a master system.Īt a very basic level, you need to know that a master key system allows two or more keys to open one lock. The change key’s corresponding lock can also be opened by the master key. Change Key – Also referred to as a sub-master key, this key will open only one lock.Master Key – The master key is able to lock and unlock all of the change key locks prioritized below it within a given system.Grand Master Key – This key will give you access to the multiple master keys and the subsequent change keys under those.Great Grand Master Key – This key will open all subsequent key systems under it, including grand master, master, and change keys.Key Management Tips for Effective Commercial Securityįrom greatest access to least, we’ve described the keys you may use within your master key system here:.

How Lock Organization and Key Management Systems Work Together.

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