Quote:
Originally Posted by Nick Lawrence
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.