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. & i* J3 p5 _5 r2 hNote: CS=80, P# q. O: a2 W% [/ h8 G* ^
3 A) ]& F, l7 t* J. Z) @
RPM 1/8= 2 @1 A* ~7 I% X, T8 a1 k1 }- V) jRPM 3/4= 6 R8 a5 l2 g. t( ~) a/ ]! Z7 _/ _( j4 V! s- z9 q0 `+ ^
Thanks a lot.
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发表于 2007-11-24 20:29
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