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.
  K+ c! O8 F! ?( [, }  xNote: CS=80

RPM 1/8=
! P. K) c- j$ j: \$ k, L* KRPM 3/4=

& h9 e! S1 l  J+ `) ?/ z4 JThanks a lot.

27149

up
1 u, G$ {- ]# x- ^* K0 w9 wup