It is something I have been asking for more times than I can remember but it seems to be too complicated to use both measurements
It is quite simple, really.
Every time you see a measurement in inches, multiply it with 25.4.
23.35 inches = 23.35 * 25.4 = 569.09 mm or without decimals 569 mm.
Unfortunately, I believe it would be too much to ask to have it translated to Dutch, that would be a mammoth task and, I actually doubt there are anybody at Vectric who speak Dutch.
Even if there is, it would be a lot to ask one person to do.
I copy documents into Word and every time I see an inches measurement, I correct it by typing *25.4= behind the number and then change inches to mm.