Internet Security Reference

Decode Core Key Utility

To decode the existing core key to a Best core you need to physically disassemble an existing core, measure all pins in at least one chamber to determine which system you are working with. If the pin stack totals 23 then it is the standard A2 system. Next, measure the driver pin in each chamber and enter the corresponding numeric into the fields above - click on calculate. If the core was keyed to MFG specifications, and all measurements were correct you should have a working core key!