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.8 ~& v% L- U+ |1 g
Note: CS=809 d' `6 F3 ?8 D
' Y% F1 Y! t& x- [* ~
RPM 1/8=6 }5 d" {! G' T: O" `1 {+ d( b
RPM 3/4= 3 j4 k( y! j( x2 s& \. F, D 8 U Q( m+ z* w' ]Thanks a lot.
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发表于 2007-11-24 20:29
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