Gold & Platinum Emerald Double Gallery Center Head with Side Grooves, 4-Prong Cast Alloys Tungsten Vanadium Steel burs are

Tungsten Vanadium Steel burs are the most widely used burs in the jewelry industry

Complete set of 5 diamond needle files in the most commonly used profiles

adjustable illuminator port

000 RPM when using the optional reduction gear)

This listing is for the replacement cutting head only—the Bergeon 6599 sprue cutter handle is not included

Gold & Platinum Emerald Double Gallery Center Head with Side Grooves, 4-Prong Cast Alloys Tungsten Vanadium Steel burs areThis cast 4 prong center head is designed for emerald cut stones and features a double gallery construction with side grooves for a refined, detailed profile. Available in 14K yellow gold, 14K white gold, and platinum, it is offered in 11 stone sizes ranging from 5. 0 x 3. 0mm to 11. 0 x 9. 0mm. Each size has its own distinct setting height, top width, and bottom width making it straightforward to match the head to your stone and design requirements.