These are fantastic ranges. Great quality and no inch measurements to interfere with my metric readings. They are strong and thick (1.2mm, you can use them as thick probes!) with very precise edges, making them very good for inspecting robot gaps or gaps between metal parts with tight tolerances. I've bought 6 of these for work and home over the last few years, the black ones from Mitutoyo are excellent too. The only downside is that co-workers run away with them because they're so cool.