A cemented-carbide tool is made of highspeed steel.

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Multiple Choice

A cemented-carbide tool is made of highspeed steel.

Explanation:
Cemented-carbide tools are not made from high-speed steel; they are composed of hard carbide particles, typically tungsten carbide, bonded with a metallic binder such as cobalt. This structure gives very high hardness and wear resistance, which is essential for demanding cutting tasks. High-speed steel, while tougher and more ductile, doesn’t reach that level of hardness and wears more quickly under high-speed cutting. Copper and aluminum are soft and not suitable for cemented-carbide tooling or high-performance cutting applications. So the statement is false.

Cemented-carbide tools are not made from high-speed steel; they are composed of hard carbide particles, typically tungsten carbide, bonded with a metallic binder such as cobalt. This structure gives very high hardness and wear resistance, which is essential for demanding cutting tasks. High-speed steel, while tougher and more ductile, doesn’t reach that level of hardness and wears more quickly under high-speed cutting. Copper and aluminum are soft and not suitable for cemented-carbide tooling or high-performance cutting applications. So the statement is false.

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