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. 6 M/ Y, m' z& @! P7 UNote: CS=80 ( Z j/ `3 ^: R& q $ h, C9 q, Q9 H, b4 j5 T9 I* T0 }RPM 1/8=! ?! n" u2 }( q, h: s/ N+ Z3 ^$ ]
RPM 3/4=" y1 F3 ]# F4 w( \3 [/ N
# d7 C+ {8 B; a
Thanks a lot.
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发表于 2007-11-24 20:29
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