Busch Fig. 38AU Conical Carbide Bur

The tapered Busch carbide bur Fig. 38AU is made from ultra-fine grain tungsten carbide, densified through hot isostatic pressing at elevated temperatures. This manufacturing process gives the bur exceptional hardness, long service life, and outstanding cutting performance.

Optimized for extremely hard jewelry materials such as:
• Platinum
• Titanium
• White gold
• Steel

Shank diameter: 2.35 mm (3/32")
Recommended operating speed: 5,000 – 10,000 rpm