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582 6000 Grit
This provides superior optical clarity and long-term durability
Hole Sizes 2mm
Parallel action jaw mechanism delivers uniform gripping pressure along the entire jaw face
use these drills in a drill press
AuRACLE 18k Yellow Plumb Calibration Round Saw Frames 582 6000 GritThe 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
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