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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
Measurements include flat edges which are approximately 1"(25mm) all around
Battery (SR44 / 357 type button cell)
No flux is required in a bottom-pour automatic casting unit
Compatible with a jeweler's saw and bench pin for cutting finished coils
Speed Range 0–30
Gold Test Needles-Set Of Four-10K-14K-18K & .999 Silver Diamond Power Hone Measurements include flat edges whichGold test needles are an essential tool for jewelers performing acid based metal testing. This set of four needles covers three gold karats 10K, 14K, and 18K plus . 999 fine silver, giving you a reliable reference for the most commonly tested metal finenesses. To use, select the appropriate karat needle and rub or scratch it against a test stone. Make a corresponding scratch or rubbing with the item being tested alongside the needle mark. Apply a drop
