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. ) w, x6 [* r* x" H( GNote: CS=80 N: i2 i2 u7 S3 Y* e& x/ M' ?! k& y& j2 P! S9 p9 g& E; M
RPM 1/8=+ h: L% K0 o% N9 ^; D: D
RPM 3/4= 5 p; _' h4 K2 @9 [ 9 X4 ^5 z- n$ A5 |7 o5 I" c' MThanks a lot.
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发表于 2007-11-24 20:29
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