Tool life is generally better when Options: A . &nbspGrain size of the metal is large B . &nbspGrain size of the metal is small C . &nbspHard constituents are present in the micro-structure of the tool material D . &nbspNone of the above

Tool life is generally better when

Question - Tool life is generally better when

Options:

A . Grain size of the metal is large

B . Grain size of the metal is small

C . Hard constituents are present in the micro-structure of the tool material

D . None of the above

Answer: Option A

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