If you're intent on trying to do this as a punch die you're going to have to get into grinding probably or it might work for a little while and then stop working.
I dare say you may have hit the nail on the head here. A few successes has kept me poking at it. I've gone full circle at least 5 times now. She ain't gonna fly with the skill sets, material and equip I have. I'll scrap the punch set idea and study the lathe solutions now.
Thanks
Last edited: