speedy611
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- Mar 4, 2015
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I was just getting ready to mention the same point that nevadabob made. My guess is that Filson has a YKK machine that automates the custom cutting of different length zippers.
Who knew how much work went into making a zipper?
YKK apparently does EVERYTHING it can in-house. Including smelting its own brass and making the boxes that the zippers ship in.
https://ykknorthamerica.com/the-ykk-difference/vertical-integration/
Why Do So Many Zippers Say YKK?
The zipper is one of those inventions—along with the bicycle—that seems as though it should have occurred much earlier in history. How complicated...slate.com
Interesting video, thanks. I was wrong about the teeth being cast, so that was educational. Also that the zips are waxed. Often heard about that but never tried it, so now I know it’s ok to do it.