Kutzall 1/4 x 1/4 In. Sphere 1/8-In. Shaft Burr, Fine is designed for use with flex shaft tools, hand grinders, and other machinery that utilize 1/8-inch collets or adjustable chucks. These sphere burrs are highly versatile, excelling at hollowing out and shaping concave surfaces such as spoons and bowls. They provide fast stock removal while delivering an outstanding finish and are resistant to loading. Maintenance is simple as they can be cleaned with solvent or even burned clean with a gas torch without damaging the teeth. Model Number: S-14-EG