 Well hey, this is Alex. I'm back with this large-format interchangeable core, Corbin. Corbin, get it? Haha. I've already taken the circlip off. You can disassemble it. I haven't seen how one of these works inside yet, and back this little brass core. We'll take this out, and then I'm assuming that this piece will drop out indeed. It does. This is interesting. So this is the actuator for the master for the interchangeable core bit. Hopefully that's in focus. So that's pins two through four, and it is not symmetrical. So there it is with the pinstack facing up, and there it is with the released position. And I guess these little fingers act as a stop, so it can only turn so far. And then here is the rest of the shell, and you can see the grooves that those little teeth fall into. These two rings which hold the rest of the plug in there. So the control line is really only the middle four pins. The front and back, I guess, have no effect on that. So we also now know that the shear line for the control is this thickness. Now if this reminds you of Corbin master ring, it should, because that's exactly how they work as well. It's like a master ring cylinder, but with only like a partial master ring. This is LFIC cylinder disassembled. Now we know how it works. That's the bidding code for this particular control key. So very exciting bidding for the keys. No operating key on this one. Anyway, this is Alex. Thanks so much for watching. Please subscribe to my channel if you like my videos. And as always, have fun and keep it legal. Cheers.