Premium Gold Test Stone-Made in the USA 2-1/2" X 1-1/2" X 1/4" Soldering Equipment and consult your injection wax

and consult your injection wax manufacturer's guidelines for the optimal injection temperature range

5 mm screwdriver (orange) with spare blades and color-coded container

Specially formulated 14K yellow gold shade concentrate for pen plating systems

this block is built for long-term professional use

Die struck for superior metal density and a crisp

Premium Gold Test Stone-Made in the USA 2-1/2" X 1-1/2" X 1/4" Soldering Equipment and consult your injection waxPremium Gold Test Stone Made in the USA 2 1 2" 1 1 2" 1 4" This top quality gold testing stone is an essential tool for precious metal identification. Made from natural Arkansas black novaculite quarried and cut in the USA, it is also commonly referred to as a streak stone or touchstone. Unlike cheap imitations made of glass that quickly stain and degrade, this premium stone is built to deliver reliable, long lasting performance in professional