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./ a2 U$ T8 J/ V2 e
Note: CS=80+ A5 q- c; u8 d N9 U( a" `; O
% ~* X4 O! Y' Q) k8 oRPM 1/8=0 \2 g: ~+ N7 X( j9 |
RPM 3/4=3 ]1 E4 U- V8 c5 e. T u$ b
! I; N4 o% h j+ ]
Thanks a lot.
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发表于 2007-11-24 20:29
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