Product Description Champion solid carbide Burs with Titanium Nitride coating are manufactured from C2 tungsten carbide. They are precision machine ground for consistently high performance. Champion Burs feature double cut flutes. "Double cut" flutes reduce chips to small, easily disposed particles, while providing better user control for more accurate deburring. TiN coating provides superior finish and longer tool life. Carbide rotary burs are for use in die grinder only. From the Manufacturer Champion solid carbide Burs with Titanium Nitride coating are manufactured in the USA from C2 tungsten carbide. Completely machined ground for consistently high performance, Champion Burs feature double cut flutes. "Double cut" flutes reduce chips to small, easily disposed particles, while providing better user control for more accurate deburring.