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Highly polished surface for smooth
It is recommended for use on precious and non-precious metals
Highly polished cast 420 stainless steel working surface
Compared to the standard ENK-410S motor (EMX8086)
Large Gold Test Stone Natural Stone - 6" x 4" Adhesives Highly polished surface for smoothThe 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
