Premium Gold Test Stone-Thick-Made in the USA- 2-1/2" X 1-1/2" X 1/2" Burs & Drills which compromises stability during use

which compromises stability during use

Ideal for catching filings and separating precious metal scrap

designed for jewelers and engravers who need a lower-profile holding solution at the bench

brass (soft non-ferrous metals) Mill Compatibility Otto Frei economy rolling mill

Premium Gold Test Stone-Thick-Made in the USA- 2-1/2" X 1-1/2" X 1/2" Burs & Drills which compromises stability during useA professional grade gold testing stone for precious metal identification, this thick touchstone is made in the USA from natural Arkansas black novaculite a premium material quarried and cut domestically. At 2 1 2" 1 1 2" 1 2", the generous thickness provides a durable, long lasting testing surface suited for daily bench use. Also referred to as streak stones or touchstones, this tool is a trusted standard for jewelers performing acid based precious