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. 3 g3 h9 m% q1 E! @! _Note: CS=80 1 z7 W# q) A6 f, m+ z% v# }" h) V. m8 A' c; m' f, F
RPM 1/8= 7 o( E' M$ K4 iRPM 3/4=# Q* @) ]$ w% e
' \, P& Z. P0 ~+ @) Z
Thanks a lot.
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发表于 2007-11-24 20:29
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