"Ed Huntress" wrote in message
...
One suggestion: don't anneal it until after you machine it, whatever you
do. You will pay for it in utter misery.

I was involved in machining 2000 cylindrical electrical connectors, 1-1/4"
diameter and 3" long, once upon a time. The harder the copper is, the
better.

I'll remember that. Maybe even harden a piece before I work it. In this
case, it was "run whut you brung". I got a stick of whatever the metal shop
had, and didn't think to harden it before working it.

"Razor-sharp chewing gum" comes to mind.

LLoyd