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.$ D& A# P/ T w6 Q9 o+ U% p
Note: CS=80' h: _7 M* [- k$ {
5 V0 z) c8 R3 Y6 n1 z0 W8 R
RPM 1/8=) w/ c, I& W5 e# r" R! f
RPM 3/4= $ E/ G* A% [- N0 V1 L* }! ~/ Q) w" q# s' z: g# x5 o- ~8 G& g
Thanks a lot.
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发表于 2007-11-24 20:29
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