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.* ~" v) p: B; t
Note: CS=80 & z$ q2 l# P2 k, b, Y3 j/ M8 F( v1 | # Z, O$ }0 G: y8 ~0 [+ a# i) ORPM 1/8=; D% l8 l% |0 p1 [. u
RPM 3/4=- b) M! m+ O2 R- ~3 I
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发表于 2007-11-24 20:29
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