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.
/ f+ s/ C; U& n  h1 @9 G1 ONote: CS=80
/ f- e/ e2 e( F9 N9 [
% B9 \5 g8 V& I; l9 F: MRPM 1/8=
RPM 3/4=

5 H* i/ {/ I% l9 b, P% TThanks a lot.

27149

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