Good news on Enmey breach threading
So, thanks to Yoda for pointing me in the right direction of the right tap, I was able to order one online.
I took my three powertubes and the tap to a machinist, who did further research.
He made a dummy as a test to get the right pre-drill size right.
Just spoke to him, and they should be ready tomorrow.
I am letting him keep the tap. So if anybody, after seeing how my Enmeys come out, want to get this done, you will be able to send your powertube to him.
I'll get all the particulars, price etc, tomorrow.