ANS:A - 90% tungsten carbide and 10% cobalt.

Carbide tipped cutting tools are typically manufactured using powder metallurgy techniques, and they commonly have a composition of 90% tungsten carbide and 10% cobalt. Tungsten carbide (WC) is an extremely hard and wear-resistant material, making it ideal for cutting tools that require high wear resistance and durability. Cobalt (Co) is commonly used as a binder phase in cemented carbides like tungsten carbide. It acts as a matrix that holds the tungsten carbide grains together and provides toughness to the material. The combination of tungsten carbide and cobalt results in a hard and tough material suitable for cutting applications in various industries, including machining, metalworking, woodworking, and mining. These carbide tipped cutting tools offer superior performance and longer tool life compared to tools made from conventional materials like high-speed steel.