We are currently designing tools for a few US companies and are finding that some companies require their designs in metric (which suits us since we're based in Ireland) Is this a growing trend?
Most machineries in the US bought long time ago are imperial. Many companies are still using imperial system. It is now a trend to go metric in many industries such as automotive and consumer.
Yes. Most likely that metric mold will never run production in U.S., because of labor cost. It may run preproduction, if shipped to U.S., but my bet is the mold never comes to U.S. The average moldmaker here, still likes the English system.