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.
Note: CS=80
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2 u7 r+ [* Q. @" RRPM 3/4=

: j$ r# o, P, x# k: y3 rThanks a lot.

27149

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