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. Y3 _2 U/ v# i, E
Note: CS=80 * @% v0 _( ^+ F' ? * f; C+ V4 ]$ O' m! ARPM 1/8=% O" l+ M9 j- U* y, i
RPM 3/4=$ k7 o% X! Y2 _& Z7 x
* Z7 L, ]) V2 d- B' H; o/ q1 ~9 W
Thanks a lot.
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发表于 2007-11-24 20:29
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