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 ]$ c& b4 }4 \1 x: P F2 m N6 _
Note: CS=80 ' t a; u% m, g9 ~2 D0 V ; k+ G5 e' ] M' JRPM 1/8=1 a! p2 d" e9 ~9 O" Q. Z1 W
RPM 3/4= a8 @. F9 ~* o! b6 r" P, o2 u1 S) p5 F. Y) Y3 w
Thanks a lot.
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发表于 2007-11-24 20:29
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