Gold Test Needles-Set Of Five-8K-10K-12K-14K & 18K Economy Book only — templates not

Book only — templates not included

Net Weight 44 lb (20 kg) Packaging Cardboard box Application Lost-wax casting investment Dust Reduction Up to 99%* respirable dust reduction Safety Warning Contains crystalline silica — see safety note below Notes

Author Oppi Untracht Format Hardcover Subject Jewelry design

Ionic cleaning process removes tarnish and contaminants gently without ammonia

this punch eliminates the need for a mallet and reduces the risk of slipping or misalignment

Gold Test Needles-Set Of Five-8K-10K-12K-14K & 18K Economy Book only — templates notGold test needles are an essential tool for jewelers and precious metal buyers who need to verify the karat purity of gold items using acid testing. This set includes five needles spanning the most commonly encountered gold karats 8K, 10K, 12K, 14K, and 18K giving you a comprehensive reference range for comparative acid testing. To use, select the appropriate karat needle and rub or scratch it against a test stone. Make a second mark on the stone with