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   Metric Stone and Pearl Gauge |
This handy gauge, known as a "pearl gauge" because it was first used for measuring pearls, is excellent for stones of all kinds and comes in a leatherette pouch. 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. Two models available with maximum openings of 10 mm or 20 mm. Fits neatly into pocket or purse. 20 mm model features a locking screw.
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