Gold Test Needles-Set Of Five-8K-10K-12K-14K & 18K Engraving Systems & Handpieces Foot-operated variable speed control keeps

Foot-operated variable speed control keeps both hands free to manage tools and workpieces

Polished to a mirror finish for clean contact with metal

kg Functions Calibration

and Next Day Air are not permitted

2181-6-2 6" 2 – Medium Notes

Gold Test Needles-Set Of Five-8K-10K-12K-14K & 18K Engraving Systems & Handpieces Foot-operated variable speed control keepsGold 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