The cutting speed for drilling copper with high speed steel drills varies from-A-10 to 20 m/minB-18 to 30 m/minC-24 to 45 m/minD-60 to 90 m/min-B-18 to 30 m/min

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B 18 to 30 m/min Explanation: No answer description is available.

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The cutting speed for drilling copper with high speed steel drills varies from

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Production Engineering - Engineering

The cutting speed for drilling copper with high speed steel drills varies from

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For help Students Orientation Mcqs Questions

For help Students Orientation
Mcqs Questions