Swiss Fig. 77B Cup Burs .90mm-3.50mm Bur Size:1.50mm Standard 1/4" Fitting – Fits

Standard 1/4" Fitting – Fits many common jewelry and watch steamer configurations

Plugs directly into existing MX-1 or MX-4 Evolution control boxes

fluid drape that has made this chain a perennial favorite among jewelers and their customers

Improves metal fluidity during casting

In reverse

Swiss Fig. 77B Cup Burs .90mm-3.50mm Bur Size:1.50mm Standard 1/4" Fitting – FitsSwiss Fig. 77B Cup Burs are crafted from tungsten vanadium steel by Dentsply Maillefer of Switzerland, one of the most trusted names in precision bur manufacturing. These cup burs are a perennial favorite among professional jewelers, offering consistent performance and reliable quality at an excellent valuemaking them the most popular burs carried by Otto Frei. Available in 14 sizes ranging from 0. 90mm to 3. 50mm, they are sold in multiples of 6.