Details
This handy gauge, known as a "pearl gauge" because it was first used for measuring pearls, is excellent for stones of all kinds. It's smooth action assures accuracy. Gauge is made to zero out when closed and opened automatically. This assures a gentle force by the user when measuring soft stones or pearls. The dial features "zero adjust" and is accurate to 0.1 mm. Equipped with locking screw and has a maximum opening of 20 mm. Fits neatly into pocket or purse.
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