[Jewelry making - Article 00057] - Re: [Orchid] Digital caliper question

[Don Rogers]

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    Happy New Year Ivy Almost all of the digital calipers are suited for
    our use.  A couple of things to look for are, 1, make sure they
    measure in both MM and IN. and  2,  DON'T get the solar powered
    ones. I have found that trying to measure stones under daylight
    florescent lighting used for grading is a problem as there is not
    enough light to "charge" the unit.  A battery powered unit would be
    preferred. 

    One other thing to consider is that the hardened and ground faces of
    the measuring surface can damage stones if you are not careful. 
    This is true of both digital and analog calipers though.  Overall, I
    much prefer the digital ones as they are more accurate and easier to
    read. 

Don

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