You touched on what I see as the biggest most long term piece to transition, American tool and die companies, foundries and fabricators. A lot of these companie

You touched on what I see as the biggest most long term piece to transition, American tool and die companies, foundries and fabricators. A lot of these companies are based around giant machines with 20 or thirty year life cycles. Switching to metric would be a factory's worst nightmare short of blowing the place up.