Kutzall 1/2 x 1 in. Flame 1/4-in. Shaft Burr, Coarse is designed for use with flex shaft tools, hand grinders, and other machinery that utilize 1/4-inch collets or adjustable chucks. These durable flame burrs can be easily cleaned with solvent or by burning with a gas torch without damaging the teeth. Known for their resistance to loading, they provide fast stock removal while delivering an outstanding finish. The flame shape allows for versatile use, including producing concave and V-cuts, with the tip i for detailed work or grooving. Model Number: FL-12