Kutzall 3/8 x 3/8 in. Sphere 1/8-in. Shaft Burr, Fine is designed for use with flex shaft tools, hand grinders, and other machinery that accommodate 1/8-inch collets or adjustable chucks. These sphere burrs provide fast stock removal while delivering an outstanding finish, making them i for hollowing out and shaping concave surfaces such as spoons and bowls. They resist loading and can be cleaned easily with solvent or by burning clean with a gas torch without damaging the teeth. Their precision allows for creating hollowed areas with undercut or overhung edges, making them versatile for detailed work. Model Number: S-38-EG