1. 1 in 10
  2. 1 in 15
  3. 1 in 20
  4. 1 in 30
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1 Answers

Answer: Option 3

A machine taper is a system for securing cutting tools or toolholders in the spindle of a machine tool or power tool. A male member of conical form (that is, with a taper) fits into the female socket, which has a matching taper of equal angle The taper on the lathe spindle is 1 in 20

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