• scrion@lemmy.world
    link
    fedilink
    arrow-up
    1
    ·
    3 months ago

    Depends on where you buy them. There are a lot of fake Mitutoyo calipers on e. g. eBay, and not everyone might be aware of that.

    And let’s face it, 5 tenths is way beyond what people need at home, 95% of people don’t have any equipment that would even allow them to control any process to that degree of accuracy.

    Also, shout out for Shars as another budget option.

    • HelixDab2@lemm.ee
      link
      fedilink
      arrow-up
      2
      ·
      3 months ago

      .0005" is best case, with the best calipers. If you have spectacularly shitty ones, your accuracy might be more like +/- .005", or ten thou.

      I use calipers for reloading; rifle cases need to be trimmed because brass flows under pressure, and you def. have a minimum and a maximum tolerance.

      • scrion@lemmy.world
        link
        fedilink
        arrow-up
        1
        ·
        3 months ago

        Plus handling errors, of course.

        But yeah, a $170 Mitutoyo caliper will also not display anything beyond five tenths, so that’s definitely a hard limit.