That satisfaction is powerful, heady stuff. LBPR (low back pain relief) even.
I been after this one a long time- I've lost count on attempts with aluminum and brass. The problem for me was getting a hole centered properly. That brass came from a discarded boiler draw off valve. It had a centered hole that went about 9/16" in- enough of a straight lead for me to follow....
I hope there's a hobby lathe in my future. It would make this kind of thing a lot easier.
Regards,
Doc Sharptail