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." z, _" _" @2 C
Note: CS=80$ R. W( n) g' I
- x9 J4 _- @/ K/ _+ X n
RPM 1/8= n0 N8 m: G! W5 |
RPM 3/4=- C! a3 e; N' \6 E0 O
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发表于 2007-11-24 20:29
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