Kutzall 1/8 x 3/4 in. Ball-Nose 1/8 in. Shaft Burr, Fine is designed for use with flex shaft tools, hand grinders, or any tool compatible with 1/8-inch collets or adjustable chucks. This fine ball nose burr is versatile, capable of creating flat surfaces, rounding over edges, shaping concave surfaces, and forming radius-bottom grooves. It is easy to maintain, as it can be cleaned with solvent or even burned clean with a gas torch without damaging the teeth, ensuring long-lasting performance and precision. Model Number: BN-18-EG