Premium Gold Test Stone-Made in the USA 3" x 1-5/8" x 1/4" New Tools Sold by the troy ounce

Sold by the troy ounce (20 pennyweight / 31

Helps eliminate air bubbles from casting investment for cleaner

Many lower-quality tungsten carbide drawplates exist on the market — verify insert thickness and polish quality before purchasing alternatives

The genuine OEM factory replacement Sight Tube Valve Kit for newer models of the Steamaster HPJ-2S and HPJ-2 steam cleaners

Syringe format enables precise

Premium Gold Test Stone-Made in the USA 3" x 1-5/8" x 1/4" New Tools Sold by the troy ounceA 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