explain detail any method of extraction of metal
with diagramme.
explain in detail
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explain detail any method of extraction of metal
with diagramme.
explain in detail
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Answer:
Drilling is a cutting process that uses a drill bit to cut a hole of circular cross-section in solid materials. The drill bit is usually a rotary cutting tool, often multi-point. The bit is pressed against the work-piece and rotated at rates from hundreds to thousands of revolutions per minute.
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