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.$ y( Z# x, _ [! B" q5 ]2 D% d+ [
Note: CS=80$ E* c$ Z8 d3 C8 h3 M0 K: I/ |$ g
9 }9 ^9 q5 b" T% h! x
RPM 1/8= + q5 i+ {, c6 G$ y; ?% X4 |, H4 tRPM 3/4= - R: g2 r @* ?; }1 }, \6 m! D! o# m# ~! J, k: b8 a
Thanks a lot.
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发表于 2007-11-24 20:29
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