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.* U( O4 e, G4 ?1 A9 _
Note: CS=80 # I, C: T8 B5 t; j7 X8 b! w" p5 q0 x1 z. w( }) M
RPM 1/8= 2 U) p; Z0 j( s/ O/ KRPM 3/4= 7 o9 x9 e! E' d9 `8 @6 n4 \$ d1 K2 G+ r" u) L, b' @' x+ }& ]
Thanks a lot.
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发表于 2007-11-24 20:29
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