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." q; U4 Z+ r1 v) i
Note: CS=80: y: U8 Q- M {/ M# O9 M
* x$ B+ g! J+ w+ }RPM 1/8=- {1 V# a! k" ?9 |# a. O M
RPM 3/4= . I; k# R. m r: h" C7 ^5 e/ a9 e4 ]. ]/ x' B* P( @( d' U4 w Z
Thanks a lot.
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发表于 2007-11-24 20:29
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