... chrome-nickel alloys.Carbide Bur,Rotary Bur,Dental Tool of carbide burrsThese dental carbide burrs feature an extra coarse, coarse, double cut ... and cobalt alloys, ceramics, and other precious metals.Carbide rotary burrs, cutting tools, burrsMachining various kinds of metal materialInstead of ... than using small emery wheelsHaving long life of ten times than high speed steel burrs and fivty times than ...