Manufacturing and Production Technology

A drill bit of 20 mm diameter rotating at 500 r.p.m. with a feed rate of 0.2 mm/revolution is used to drill a through hole in a mild steel plate 20 mm thickness. The depth of cut in this drilling operation is_____.

  • A. 0.2 mm
  • B. 10 mm
  • C. 20 mm
  • D. 100 mm
Answer: Option C.

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