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606 (JR-1C2-B) – single-sided stand-up dust collector
Overall Length 8" Blade Length 2-1/2" Blade Style Straight long Spring No spring Maximum Cutting Capacity 20 gauge Country of Origin Germany
Compatible Handpiece Foredom No
Cut grades run from 00 (extra coarse) to 4 (fine) — the higher the number
Ball Diameter 3-15/16" Construction Drop forged Finish Basic polish (user-refinishable) Origin Made in the USA
Gold Test Needles-Set Of Three-10K-14K-18K G-Tac 606 (JR-1C2-B) – single-sided stand-upGold test needles are an essential tool for jewelers performing acid based karat testing. This set of three needles covers the most commonly encountered gold karats in jewelry: 10K, 14K, and 18K. Use these needles as reference standards when comparing acid reactions on a test stone to determine the karat of an unknown gold item. To use, select the appropriate karat needle and rub or scratch it against a test stone. Make a second rubbing or scratch
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