Keying the Corbin Figure 8 Style Removable Core

When rekeying IC cores, a good way to be sure a master key, control and change key will operate is to pin one chamber at a time.


Corbin first introduced their version of the removable core lock mechanism during the early 1960s with what is known as the “Old Round Core.”  This five- or six-pin tumbler removable core system was similar to several lock manufacturers’ products at the time. Unlike removable and...


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