Punch Die Sharpening
· They have to be for layout. A tool and cutter grinder would be great for sharpening them. If you don't need them, I would grind the punch flat. I would sure make it easier. As far as punch clearance, I was taught a lot of years ago that it's 7% per side or 15% total for "most" steels. Aluminum copper are less but usually not less than 5% per ...