Answer is:
Segmental chips
Explanation:
While turning cast iron discontinuous chips or Segmental chips are found.
Answer is:
increases
Explanation:
As the diameter of the workpiece decreases, the spindle speed (for the same cutting speed) increases.
Answer is:
2 x depth of cut
Answer is:
higher rpm with a slower feed
Explanation:
Centre drilling should be done at higher rpm with a slower feed.