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 I6 n0 u) i( o8 L! |
Note: CS=80 1 @' f) ^" K2 S( k/ F! Y! U6 J! Z! D4 N
RPM 1/8= 5 {# d) ^! h7 l; Q, T& ZRPM 3/4= : C1 D/ p9 u8 b& E/ [' n7 J 8 X5 I& _7 D7 `7 w) DThanks a lot.
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发表于 2007-11-24 20:29
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