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. ]4 \- j& r H/ N; |Note: CS=80 - M5 y" M0 v3 N, u/ ?4 ^6 t0 z* N& c9 T1 ^6 j: v$ s/ u
RPM 1/8=$ e. C5 x3 S% u) A9 ?6 f; r& e7 v: t6 W
RPM 3/4=# c0 r1 O# l1 ]/ I7 {$ C" s
) R, j2 V* k+ M$ u5 ]6 W. m; W
Thanks a lot.
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发表于 2007-11-24 20:29
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