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.! K3 V0 [$ F" _( z/ L: u. v5 d
Note: CS=80 ; Y7 w; Q/ I+ C0 w/ n3 a& o7 h7 U& S! I; k2 t$ _$ j
RPM 1/8= / b, c% c5 Z+ w3 j7 F$ }3 oRPM 3/4=7 V6 m& y! h2 ]$ T, i
5 e. ^/ m- A2 A3 e2 I0 ~) o5 @
Thanks a lot.
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发表于 2007-11-24 20:29
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