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. 5 @/ d' P8 q4 Y9 d$ K% lNote: CS=80 / o# ?$ R/ U: P* s# [& L) x |. }4 o1 k7 U( d
RPM 1/8= % X/ B3 U9 C: Z" W4 ~3 dRPM 3/4= : A% D+ f% ]' d( d5 @) A: N" U2 Y6 A" }; l& B, w$ P; z0 X
Thanks a lot.
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发表于 2007-11-24 20:29
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