CNC题目,又再请教。

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A 1/8 inch pilot hole followed by a 3/4 inch dia hole to be drilled in end of a 3.875 inch dia shaft.Calculate the RPM of each drill.
% z+ Y7 d1 j' ]4 c: l. Y& VNote: CS=80
( K. x# L1 N- }  v2 Z
) e# v" N7 c" |+ yRPM 1/8=
  w7 q0 |; v3 z3 }RPM 3/4=

2 X% M1 U" V4 dThanks a lot.

27149

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