C2 Micrograin Carbide Tool Blanks provide durability and work well in both low-speed machining and high-speed cutting applications. The heat-resistance of micrograin carbide material provides higher rigidity than HSS and makes these tool blanks especially suitable for high-speed applications on cast iron, nonferrous materials, plastics, and other difficult-to-machine materials. Choose from 700, 777,1000, 2000, 5000, 6000, and 7000 Series for your specific job.