The following is provided in an attempt make it easier for the law person to understand the basics of a master key system. These basics can be applied to all mechanical locks. Foty Lock & Safe can master key all manner of pin tumbler locks from the lowly Kwikset to high security locks such as ASSA and my favorite, Mul-T-Lock. If you questions on the capabilities of master key systems, please contact Foty Lock & Safe.

The definitions found at the link below were written by Billy Edwards of Master Lock Company:

Click on the logo above