Key Terminologies

Master Key System

A master system takes standard pinning one step further and uses master wafers or spacers in each chamber. These wafers create an additional shear line that allows the master key to turn in all of the locks. This way, you can have different pinning combinations for different levels, but the extra shear lines can allow a number of different keys to work the lock

Opens Locks In Groups A and B Only

Individually Keyed Differs

Key Alike System

This system is suitable to open all of locks with a single key

All Doors Open With a Single Key

Individually Keyed Differs