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.! R0 t. D0 b' ]
Note: CS=80# b6 {4 a/ w- H# ?# R+ V6 [5 h
7 S2 D; \8 g4 v- j( I' IRPM 1/8=' n3 i, E' o! G' l3 Q
RPM 3/4= * w: Y* k) c- o o, z: [. P ; q0 C" S+ y& P9 @, {! ^Thanks a lot.
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发表于 2007-11-24 20:29
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