People always seem to get interested when they hear about master keys for locks. This universal key can be used for opening any lock. It seems there is a kind of fascination with the idea of one key working for different locks. They feel that there is something special about a key that can open more than one door. How does the master key for all door locks work, and what are the mechanics behind it? Read ahead to learn more.

Master Keys for Locks:

  • There are different systems of keys that work in the master key for all door locks.
  • The change key is also known as a sub-master key that can open all locks the same.
  • The master key the highest-ranking key and can open the main lock and is also referred to as MK.
  • The grandmaster key can access multiple master key systems and is known as GMK.
  • The great grand master key can all the grand master key systems.

The Mechanism Behind:

The master keys for the locks set to carry a basic pin tumbler lock that comprises a driver pin and a key pin. These two are elevated and positioned so that they rest on opposite sides of the shear line. While the key pins are of different sizes, there is a universal size for the driver pins. The key needs to have a precise set of furrows so that they can fit correctly. Any standard pin tumbler can be converted to master keys for the locks system. This is how one can get into different apartments with the same key. To understand how the master key works, it is essential to understand how a simple basic lock works.

The cylinder lock is the most used lock design, where the key turns a cylinder and the attached cam. The cam pulls in on the bolt when the plug is turned one way and opens the door. However, some locks are designed to work with two different keys, but the master key will open that lock and other locks.

Benefits of the Master Key for Locks:

There are several advantages of having grand master keys for locks as they offer superior control over the system and security. The master key systems certainly add to the security and convenience. However, most people are not aware of some interesting facts about these keys.

  • It is Unique- These keys are made on a restricted keyway, and thus it is difficult to make a copy of them. Thankfully, the restricted keyway prevents unauthorized copying and placing your home or business at risk.
  • Unique Serialization- These keys carry a unique serialization, and one can easily track the serial number to the individual holders. The tracking helps ensure that one always knows exactly how many keys there are, the level of access of each key, who has them, and more.
  • Works on Reliable Technology- These keys work with re - keyable lock technology that prevents the need to call a locksmith. It only adds to the organisation's efficiency and allows access to multiple doors and provides significant cost savings.
  • Tracking Via Software- These keys can be managed and tracked through software. The key control software keeps track of all keys via a secure cloud-based platform. One can get 24/7 access to information about your security system in real-time.


Keep your home and business safe from any unauthorized access and use master keys for locks to enhance the security system. Now you can be sure that those keys cannot be copied, and no one can enter your property. Cloud-based tracking systems allow you to keep track of those keys remotely.