(10-02-2018, 09:37 PM)alanealane Wrote: I finally found my 5/8" Jacobs Superchuck (model "No. 16") with mt2 arbor in my toolbox at work. Smooth action. It's a beast! But I don't have a use for it. Comes with a K4 safety chuck key that is spring loaded and won't accidentally stay in the chuck. Let me know if you're interested Aram