Gold Test Needles-Set Of Four-10K-14K-18K & .999 Silver Electroplating Two monocular lenses for high-magnification

Two monocular lenses for high-magnification single-eye tasks: 4X and 7X

Keeping a supply of replacement pins on hand ensures your bracelet sizing work is never interrupted by a worn or damaged pin

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

Compatible with ring cutter blades 148

Supports the ancient Korean technique of applying 24-karat gold foil to fine silver

Gold Test Needles-Set Of Four-10K-14K-18K & .999 Silver Electroplating Two monocular lenses for high-magnificationGold 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