AuRACLE 18k Yellow Plumb Calibration Round Air Compressors 035" diameter Guardian posts are

035" diameter Guardian posts are compatible with the following Guardian earring nuts:

Jura by GRS 500-506 Brass Tapered Point Holders are precision-made accessories designed for use with JURA tool holders that fit into the GRS MicroBlock

recommended for use with plastic pyramid or cone media

0866" B118

Accepts shanks up to 1/4" (6

AuRACLE 18k Yellow Plumb Calibration Round Air Compressors 035" diameter Guardian posts areThe AuRACLE 18K Yellow Plumb Gold Calibration Round is a precision calibration disc designed specifically for use with the AuRACLE gold tester. Proper calibration is essential for accurate karat readings, and GemOro recommends using an 18K yellow plumb gold sample as the calibration standard. This disc meets that specification exactly, ensuring your AuRACLE tester performs to its full accuracy potential. Plumb gold refers to gold that is guaranteed to