Used Open-Box Durston 1312 Quad Jump Ringer Alloys Tungsten Vanadium steel burs are

Tungsten Vanadium steel burs are the most popular burs used in the jewelry industry

consistent Plat impression

300-gram head weight suitable for sustained raising sessions

and aluminum oxide abrasive compounds in a rubber binder

Used Open-Box Durston 1312 Quad Jump Ringer Alloys Tungsten Vanadium steel burs areThe Durston 1312 Quad Jump Ringer is a professional jump ring making machine designed for jewelers and metalsmiths who need to mass produce jump rings efficiently. Compatible with a Foredom No. 30 style handpiece and flex shaft machine, this system lets you produce jump rings from soft, non ferrous jewelry wire including gold, copper, and silver. Wire as thick as 13 gauge (1. 85 mm) can be used, and the inside diameter of finished rings ranges from 2.