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.% {; P1 j3 q v+ r3 b# {4 S. V; O
Note: CS=80/ E. |% E8 n+ X! w1 p6 O x
+ w/ m1 F, ^5 D9 {RPM 1/8=% G$ T9 i+ |# ~* v. O- M
RPM 3/4= 9 A2 n6 z9 j- d. z7 M+ { P% S' W- _3 y, W- g' m9 w; F3 ~
Thanks a lot.
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发表于 2007-11-24 20:29
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