Silicon Carbide Grinding Wheel Grit:100 This sterling silver ring mounting

This sterling silver ring mounting features an open filigree design and a bezel mounting that holds one round 7mm flat-back gemstone or crystal

diamond-cut facets on the metal surface create multiple flat

Tapered rectangles (six cut-outs)

This Rio Grande aluminum mold frame holds two molds at the same time and is unvented

Silicon Carbide Grinding Wheel Grit:100 This sterling silver ring mountingMade with the finest quality graded silicon carbide grit, these grinding wheels are bonded especially for lapidary work. All wheels have 1" arbor holes. Plastic popout, stepdown bushings are included to adjust for 3 4", 5 8" and 1 2" arbor holes.