Cemented Carbide
These are small pieces with cutting edges and mechanically jointed or brazed to tool shank. Cemented Carbide tool tips are produced by process of powder metallurgy by sintering the powder carbides of W, Ta, Ti in Co powder. The contents are 40-95% WC, 3-30% Co, 0-30% TaC and TiC and hardness of tips is in excess of 65 RC compared to 60 RC of stellite. High hardness, high compressive strength at high temperatures are the main characteristics.