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Ships within 48 hours · Estimated delivery Sep 26 - Oct 1
Available in multiple precious metal configurations
Compatible with Economy rolling mill systems
5 mm 624-27 2" 50
File length is measured from the tip to the end of the cut and does not include the tang
Premium Gold Test Stone-Made in the USA 3" x 1-5/8" x 1/4" Economy Available in multiple precious metalA professional grade gold testing stone made in the USA from natural Arkansas black novaculite, quarried and cut domestically. Used by jewelers and metalsmiths to test precious metals, this stonealso known as a streak stone or touchstoneprovides a reliable surface for acid based karat testing. Beware of cheap imitations made of glass, which stain and degrade quickly under repeated use. To test a metal item, rub or scratch it across the stone's
