What Is a Master Wafer

What makes them different is that a master wafer is a single piece (unlike the red/blue pins seen in this image which are split in the middle. After master key cutting, the key is then put into a lock with master wafers. When that happens, two shear lines are created. In this image, there are two master wafers.

What is a master wafer in a lock?

Some locks are designed to work with two different keys. The change key will open only that specific lock, while the master key will open that lock and several others in a group. In these locks, a few of the pin pairs are separated by a third pin. This third pin is called a master wafer or spacer.

How does a master key system work?

Master key system is a system that allows two or more keys to open one lock. Master keys will be able to open multiple locks. The greater the difference between the master key and the change key, the more master wafers will be needed. The more master wafers, the more possible keys can open the lock.