1/2" x 1" x 1/4" Drillco Double Cut Carbide Bur SB-5 (Cylindrical with End Cut)Carbide burs are one of the most widely used and versatile cutting tools, used in virtually every industry. Manufactured from Tungsten Carbide, they are primarily used to remove burrs (the small flakes of metal) that often remain on the workpiece after the machining process. Used for interior contour work Double Cut Shank Length: Standard Bur Diameter: 1 2" Shank Diameter: 1 4" Length of Cut: 1" Made in USA