A major benefit of Cylinder Locks is the ability to create different Key System Options. These are particularly important in commercial applications but are also useful in simple form for domestic applications. Here we explain briefly the different options available.

KTD - Keyed To Differ
A single Cylinder with an Individual Key pattern.

KA - Keyed Alike
Any number of Cylinders all opened by the Same Key pattern.

MK - Master Keyed System
Any number of Cylinders each with an Individual Key pattern, a single Master Key opens all Cylinders in the system.

GMK - Grand Master Key System
Any number of Cylinders each with an Individual Key pattern, a single Master Key opens a defined group of Cylinders but not other defined groups. A Grand Master Key opens all Cylinder in all groups.

CK Construction Key
The Construction key is used during installation, allowing workmen full access to all areas. The main key is then used to recode the Cylinder and to automatically exclude the Construction Key.
More Handles is able to provide a complete Master-Key system via Eurospec. This can be applied to internal and external doors and even padlocks. Please contact us to discuss your individual requirements.