Kutzall Extreme 1/4 x 1/2 In. Ball-Nose 1/8-In. Shaft Burr, Very Coarse is designed for precision and efficiency in material removal. These burrs feature a rugged and very coarse tungsten-carbide coating, making them i for use with flex shaft tools, small rotary grinders, and other machinery that accommodate 1/8” collets or adjustable chucks. The aggressive, razor-sharp teeth provide excellent control while resisting loading, allowing you to create flat surfaces, round-over edges, concave shapes, and radius-bottom grooves with ease. Spend more time carving and less time clearing your tool with the reliable performance of Kutzall’s Ball Nose Burrs. Model Number: BNX-14-EC