AuRACLE 18k Yellow Plumb Calibration Round Earring Mountings Carbon steel construction for toughness

Carbon steel construction for toughness and durability

The Foredom H

portable use

delicate applications

making it easy to secure to a workbench or tabletop for stable

AuRACLE 18k Yellow Plumb Calibration Round Earring Mountings Carbon steel construction for toughnessThe 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