Gold Test Needles-Set Of Four-10K-14K-18K & .999 Silver Electroplating The shelf attaches directly to

The shelf attaches directly to the GRS fixed mounting plate (104

Compatible with ring cutter blades 148

this indicator light illuminates whenever the unit's heating element is actively engaged—giving the operator a clear

Excellent performance as an investment casting alloy

Gold Test Needles-Set Of Four-10K-14K-18K & .999 Silver Electroplating The shelf attaches directly toGold test needles are an essential tool for jewelers performing acid based metal testing. This set of four needles covers three gold karats 10K, 14K, and 18K plus . 999 fine silver, giving you a reliable reference for the most commonly tested metal finenesses. To use, select the appropriate karat needle and rub or scratch it against a test stone. Make a corresponding scratch or rubbing with the item being tested alongside the needle mark. Apply a drop