Original Taper Burr, 1/8" Shaft, Coarse (1/4" x 1/2")The Kutzall tool line is designed to provide fast stock removal with an outstanding finish, thanks to exclusive tungsten carbide coatings that make it the best value in the industry. The 1 8" shaft burrs are used in flex shaft tools, hand grinders, or other machinery using 1 8" collets or adjustable chucks. They are not prone to loading, but may easily be cleaned with solvent or burned clean with a gas torch. Heat generated from the torch will not