When I make lugs, I set up an assembly line
I flatten the end of the copper tube in the vise
Then I center punch where I want the hole
Then drill the hole ( this way I can hold on to the pipe/tubing)
Then I cut off the lug from the tubing and start over
Only takes a couple of minutes per lug
I'll make more than I intend to immediately use
And make several sizes ( if needed for back up supply)
This happens about once a year,
Just went through this last Friday, I needed lugs for making inter connects for the new batteries