Busch® Fig. 3 Super Carbide Burs, Inverted Cone

Made of the finest grade tungsten carbide, accurately fluted and honed to sharp cutting edges.  Bur heads are brazed onto 3/32" steel shanks.  

Busch Super Carbide Burs have coarse tooth structure and are designed to operate at very high speeds. All are end cut. Cannot be resharpened.