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. 9 ^- k5 R4 b% K) h% @; w$ S% N5 mNote: CS=808 k E6 s: B, q
0 M1 ^( Z3 f! _/ ?RPM 1/8= # \5 z( j: B! i# _" ]" IRPM 3/4=& ~/ r6 [. I3 `3 }0 p+ C
$ J5 z9 }( c) s# M. r: m+ Z! L* R
Thanks a lot.
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发表于 2007-11-24 20:29
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