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. 7 K' Q2 R" R0 ENote: CS=80 8 _& ]% d. G! C4 e 0 ~8 D6 p/ w y: }/ U7 oRPM 1/8=5 Y6 a9 u0 U) h, O6 E
RPM 3/4=* ^* p+ o t6 r
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发表于 2007-11-24 20:29
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