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In a message dated 10/1/01 12:09:44 AM Pacific Daylight Time, eric@k3na.org 
writes:
> Drilling holes in tubular tower legs at the base doesn't appear to me as a 
> manufacturer-recommended practice.  Holes in tube walls
>  reduce the ability to tolerate stress/shear.
    I think it's called a stress-riser.
Cheers,   Steve     K7LXC
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