Good move on the purchase R'1943.

This seems like mana from heaven (or moonshine from down below)...

I've struggled with my Voyager's crank from the day I purchased it.  I managed to get some respite from this foreign Jet arm I picked up somewhere,

I tried to fabricate a connection

that had me thinking what was I thinking,

Your solution seems the best kid on the block... though being an imperial ignoramus and bamboozled with all your fractional quotes, is this socket,

the 3/8" you were referring to?  Being imperial, would it object to a metric (6mm) tap?

If your first cut is too short... Take the second cut from the longer end... LBD