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. 6 f2 K1 z$ N* L3 ~3 f% INote: CS=80# f& J5 W( D6 W0 a
, N6 y7 @3 n& m) ?: B, w
RPM 1/8=" p: D9 S9 x* e& R
RPM 3/4= " L+ E, [4 R' k5 c6 [9 W8 m% Z. d! f6 R
Thanks a lot.
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发表于 2007-11-24 20:29
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