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 a& V- l ]# d4 b+ X
Note: CS=80 & _( d4 O0 u. J O9 u& P. \3 p/ o% ]& f( y; F! p
RPM 1/8=0 I# U. W; ~/ i6 |( l
RPM 3/4= 8 B7 M( G& J8 q9 _! `0 ?3 O& H4 \" Q" X5 Z: L: C
Thanks a lot.
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发表于 2007-11-24 20:29
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