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.
+ S$ @6 c0 ~4 }8 }( ANote: CS=80

8 ^  M: v, Q  C; A, k6 KRPM 1/8=
4 m7 I5 y: b$ K* K. N; iRPM 3/4=
: r% F0 d) U' Z
2 U) ?, N3 z) V# S1 x; Y: jThanks a lot.

27149

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