Acid Testing Needles 3Pcs

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3 New Acid Test Needles This is a new set of 3 acid testing needles These needles test 10K, 14K and 18K gold They are used to determine karat content of gold The needles and the it em 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. Show more