So I ended up ordering the other to compare.
They have the exact same capacity although the metal one appears to have nicer jaws.
The metal one has a ratcheting lock as well. Tighten like normal. Then you hear a few clicks of the ratchet. Back it off one click it’s locked. Back it off one more and it’s free to loosen. I don’t remember the original plastic one having that feature but it won’t hold a bit no matter what anymore. Then again I wouldn’t be surprised if they both have the exact same internals. Can anyone confirm if the plastic chuck is supposed to have the ratchet lock?
The metal stamping on the metal one is piss poor. It looks like what I would expect from China and not as a Festool part. It’s too bad that Festool can’t seem to produce drill chucks that are even remotely as close to good as Albrecht. It’s the biggest lacking feature of the drills, especially on a drill as powerful As the PDC