Gold Test Needles-Set Of Three-10K-14K-18K Prop 65 - DINP Extra Set of Motor Brushes

Extra Set of Motor Brushes

1mm sterling silver curb chain

617 90 Degree 102

Compact design ideal for smaller applications and mobile bench setups

Available in three metal options to suit a range of client preferences and price points

Gold Test Needles-Set Of Three-10K-14K-18K Prop 65 - DINP Extra Set of Motor BrushesGold test needles are an essential tool for jewelers performing acid based karat testing. This set of three needles covers the most commonly encountered gold karats in jewelry: 10K, 14K, and 18K. Use these needles as reference standards when comparing acid reactions on a test stone to determine the karat of an unknown gold item. To use, select the appropriate karat needle and rub or scratch it against a test stone. Make a second rubbing or scratch