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. 2 i! y# N: b! v3 j4 PNote: CS=80, x0 ]3 B4 v D; T) j8 K9 k3 T
$ Q) n1 A$ b3 {& i
RPM 1/8= k3 P7 a( Q: i5 U7 M, K1 n% ~
RPM 3/4= ; L. H6 k/ G: b% L; ~+ F0 [8 D* i+ i4 N7 y2 A
Thanks a lot.
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发表于 2007-11-24 20:29
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