Acid Testing Needles 4Pcs Diamond Kids Fifty 18 mm (0

Fifty 18 mm (0

Approximate Width - 3

The draw at the bottom allows more space to safely hold those small parts so essential to every bench

Each has two elastic bands inside to hold your jewelry firmly in place

Acid Testing Needles 4Pcs Diamond Kids Fifty 18 mm (04 New Acid Test Needles This is a new set of 4 testing needles These needles test 10K, 14K, 18K gold and silver They are used to determine karat content of gold and silver The needles and the item to be tested are rubbed on a test stone and treated with acid to determine a match Newer versions of the item shown may be shipped, as a result, there may be a slight variation in color and design.