CNC题目,又再请教。

27149

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.
/ ]6 {5 p2 X4 y, oNote: CS=80
5 D5 I: T9 ?2 F8 Q6 M' ~
! t) q; F$ ]: t7 K$ Z* i6 Y& sRPM 1/8=
  r5 v2 P) p% a% r9 ERPM 3/4=

Thanks a lot.

27149

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