Up late to make tomato juice tonight

[Worth1]

The outer adapter could/would have O rings to prevent leakage.
If it is a taper I could duplicate the taper and it alone would prevent leaks.
Many ways to solve the problem.
More than I can write about.

whatever the case I am glad you are happy with it.
Once you go motorized you never go back.
Too many hours and sore arms wasted with a hand grinder myself.

Worth