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., q7 t- M0 m4 E
Note: CS=80/ X6 z+ x1 o9 B% I
) Y V! R6 |! @9 xRPM 1/8= . `& y3 z T. q6 g# A! ZRPM 3/4=# m" R" o, ^7 f. C% |) ] i6 o
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发表于 2007-11-24 20:29
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