1. Straight fluted reamer
  2. Left hand spiral fluted reamer
  3. Right hand spiral fluted reamer
  4. Any one of these
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1 Answers

Answer: Option 3

Right hand spiral reamers should be selected for blind holes. . -Additionally a right hand spiral also helps bridge interruptions such as cross-holes or keyways. -A right hand spiral reamer may cut slightly oversized holes due to the aggressive flute geometry. -They perform very well in highly ductile materials

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