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Overall Length 8" Blade Length 2-1/2" Blade Style Straight long Spring No spring Maximum Cutting Capacity 20 gauge Country of Origin Germany
Working Surface Diameter 3 inches Working Surface Material Stainless steel Sleeve Material Plastic Compatible Handpiece Style #30 style flex shaft handpiece Recommended Bur Size 11
6" (150 mm) Available Cuts 0 Coarse
With an overall capacity of 0 to
Bulk gross pack of 144 blades for high-volume or studio use
Gold Test Needles-Set Of Three-10K-14K-18K G-Tac Overall Length 8" Blade LengthGold 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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