Drillco® Magnum SET 1 Solid Carbide Double Cut Burr Set, 8 PiecesManufactured from tungsten carbide, primarily used to remove burrs (the small flakes of metal) that often remain on the workpiece after the machining process Solid carbide tools offer long tool life and faster cutting speeds than other substrates, but are more brittle and must be used with rigid tool holding systems Double cut style has rows of cutting teeth cut in two intersecting directions for fast material removal and a rougher finish Includes: SA