Setting Burs are used to prepare a seat for a faceted stone. They are mounted on a 3/32 shank which allows them to be used with a quick change handpiece. The tungsten vanadium burs are machine fluted for more accurate cutting. Available in sizes from 1mm to 8mm with 1mm to 4mm being sold in packages of 6, while the larger sizes are sold individually. We stock Busch and Fox brands of setting burs, both of which are manufactured in Germany.