Disco Stu wrote:As for the weird pinning, anybody's guess is as good as mine. An uncut KW1 opens them with a jiggle here or there, so in my opinion, security is not first priority here. I might be leaning towards them being a set of lockouts for machine tools, or electrical equipment. More of a visual indicator/deterrent.
You can leave empty pin chambers in a lock and rotate which ones are left empty where you leave the key uncut in the same position and can create a small master keying system where the master key has all of the cuts... This is called "positional master keying" and is how the Kaba dimple locks are keyed...
~~ Evan