AuRACLE 18k Yellow Plumb Calibration Round Closeouts Set of 6 needle files

Set of 6 needle files suited for wax carving and model work

cutting burs

and a fluteroni

Part # Stone Size Stone Diameter Setting Diameter 51-20A

AuRACLE 18k Yellow Plumb Calibration Round Closeouts Set of 6 needle filesThe 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