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Unread 24-02-2011, 23:53
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Re: pic: Spartonics 1503 - 2011

Quote:
Originally Posted by Nick Lawrence View Post
I was skeptical at first myself, until I tried to twist one of or siderails.

It takes a lot more force to do so with these flanged lightening holes.

These punches made the difference between having to swiss cheese a super heavy over-trussed frame and being 15 lbs underweight.

-Nick
So do the punches punch and flange in one operation? If so, I want a set .

If not for the mini-flanges, would the sidewalls be just bare sheet? If so, that would explain why the mini-flanges help so much.
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