Large Gold Test Stone Natural Stone - 6" x 4" Watch Tools extending the useful life of

extending the useful life of the tool

Simply rub the cone in a small dish with a few drops of water to create a smooth

the CB2 delivers full-size performance in a compact footprint

holding each piece firmly without placing stress on the prongs or the post

the Kaya Cast is engineered for consistent

Large Gold Test Stone Natural Stone - 6" x 4" Watch Tools extending the useful life ofThe 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