Busch® Tungsten Vanadium Stone-Setting Bur Set, 3.5 Rolling Mills & Pattern Plates The adjustable ratchet temples allows

The adjustable ratchet temples allows you to adjust the lens for facial features and eyeglass position

Quickly and accurately test all colors of gold (from 6–24-karat) and platinum with the AuRACLE™ PRO gold/platinum tester from GemOro®

STV and KH

20-gauge (633066) —Round 4mm ID

Lab Report Number: 675565838

Busch® Tungsten Vanadium Stone-Setting Bur Set, 3.5 Rolling Mills & Pattern Plates The adjustable ratchet temples allowsThese Busch stone setting burs are used to cut level seats in prongs for setting gemstones. Sizes are calibrated to fit standard brilliant cut round gemstones. This set includes 11 burs, sizes 3. 5mm through 8mm. Made from cost effective tungsten vanadium, these burs cut precisely and can be used at low speeds.