I just discovered this item by Whidden and searched here and found this thread. Has anyone been able to use a Lee u-die (.40) with it. My concern is not enough thread for the lock nut to work. I also see that Flexmoney tried to use lock nut from the bottom but would hit tool head before seating.
Kyle, any chance of seating lock screw on the bottom to tool head after getting it fitted then filing the nut down to fit/clear toolhead?
Did you find another way to get the toolhead to work?