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. : E% `6 \4 m' J8 {9 l) MNote: CS=80 P- l- X2 I# k' _ ) z7 h$ |% D2 ?* B. p, i' sRPM 1/8= & g' o! @* N7 E5 ~7 y. i/ ~0 gRPM 3/4=4 D0 V* p1 o% c: B* g7 j% z
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发表于 2007-11-24 20:29
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