Cobra Carbide 40106 Solid Carbide Turning Insert, CM02 Grade, Multilayer Coated, CCMT Style, Molded Chipbreaker, CCMT 21.51, 3/32" Thick, 1/64" Radius (Pack of 10) Solid carbide tools offer long tool life and faster cutting speeds than other substrates, but are more brittle and must be used with rigid toolholding systems Multi Layer coating TiC/Al2O3/TiN Good toughness, high strength in use and versatility for roughing, medium roughing of steel, alloy steel and cast-iron, especially for high speed and quick cutting Used for semi-finishing and finishing on a wide range of materials 80 degrees diamond single sided insert with molded chipbreaker