Busch Fig. 415 Knife Edge Bur Kit of 11 - 1.0mm - 2.0mm Polishing Aids Made in the USA from

Made in the USA from American-made carbon steel

Hydrogen/Oxygen

14K White Gold is nickel-based alloy with rhodium plating

Duplex springs and duplex spring adapters are easily damaged and carry no warranties

60mm square forming block made in Italy

Busch Fig. 415 Knife Edge Bur Kit of 11 - 1.0mm - 2.0mm Polishing Aids Made in the USA fromThe Busch Fig. 415 Knife Edge Bur Kit contains one each of 11 burs ranging from 1. 0mm to 2. 0mm, packaged together in a plastic storage container. This assortment gives stone setters a complete progression of sizes in a single purchase, eliminating the need to source each bur individually. Busch Fig. 415 burs also known as Lens burs feature a 55 degree angle that produces narrow, precise cuts in precious metals. This geometry is especially well