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. 9 x( l9 C: x5 ANote: CS=80 - P3 P) P, x; N) W( z9 Z3 p; L' }6 F. N W
RPM 1/8=' M4 {( |8 a7 q' T) y
RPM 3/4= ' {, }3 C, ~! ^$ w! \+ N, N( ?4 ~6 H% o& S8 {
Thanks a lot.
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发表于 2007-11-24 20:29
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