Cobra Carbide Screw-On style turning insert. Triangle with chipbreaker. Single sided insert with chipbreaker. 11 Degrees relief angle. Used for turning, facing, and boring. Designed for heavy roughing to semi-finishing of all steels. 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. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications.