• Aceticon@lemmy.world
    link
    fedilink
    English
    arrow-up
    2
    ·
    edit-2
    4 months ago

    In the design and manufacture of PCBs (aka circuit boards) a “mil” is a one thousandth of an inch, so it makes sense that’s what is being used in this context.

    Also the maths check out: 0.005 inches is equal to aprox 0.12mm, “just over 0.1mm”.