 鲜花( 2)  鸡蛋( 2)
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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.: ], F4 S6 C6 p2 W" [
Note: CS=80
* B$ ] |7 j% y. l9 }9 L
5 O8 N) w, x+ v0 X* I- [, URPM 1/8=/ j; O, M4 A, |& n- u
RPM 3/4=
; u, I+ e) {0 j' E- e, B3 Y2 l: e4 o7 `2 _$ E+ B! p
Thanks a lot. |
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