Carbide burs and drills are known for their particular hardness and the resultant tool life, as well as their cutting capacity. These advantageous properties now also make it possible to economically process materials, which are very hard and difficult to cut (such as platinum, white gold, titanium, and steel). Let yourself be captivated by reproducible results and smooth, shiny surfaces! 

Busch AU style carbide burs cut more aggressively than standard carbides. Edges are more precise (making setting easier) and they produce a brighter finish. Available in 70° Hart on this page as well as Round90° Hart burs, Cone, and in Twist Drills. 

Busch 70° Hart Carbide Burs are available in 15 diameters from 0.90mm to 2.30mm (see drop-down menu below). Sold in packages of 2, available only in multiples of two. Shanks measure 3/32″ diameter and are marked with a gold band for easy identification. 

Please consult ANSI (American National Standards Institute) for speed recommendations. Made in Germany. 

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