Large Gold Test Stone Natural Stone - 6" x 4" Ring Sizers & Stretchers Suitable when no Coalescing Filter

Suitable when no Coalescing Filter is already present on the compressor output

CE compliant construction

keeping your tools organized and protected at the bench

Product OttoTech Citri-Pickle Citric Acid Pickle Compound Compatible Metals Gold

highly polished Hardness 50rc (Rockwell scale) Handle Material Padauk wood Country of Origin Vietnam Notes

Large Gold Test Stone Natural Stone - 6" x 4" Ring Sizers & Stretchers Suitable when no Coalescing FilterThe Large Gold Test Stone from Eurotool is a natural stone cut to a generous 6" x 4" size, ideal for professional gold testing in a jeweler's bench or assay station. Gold test stonesalso known as touchstonesare used to assess the karat or purity of gold alloys by observing the streak left when metal is rubbed across the stone's fine grained surface. The larger format of this stone provides ample working area, allowing multiple test streaks to be