The hollow spaces are deliberate, for rat tail or hidden tangs it give the tang flex room to absorb impact. Without the dead space the blade is more likely to break.
Also helps stabilize and anchor the polymer layers on the knife...the material flows into the voids and works like its own epoxy. Those little knives are tough
Your right, I've plenty of half assed that'll do projects in my shed until I took the time to think them through properly! Happy to say there's less of those taking up space. Everyone has to start somewhere, good on him.
Cobalt drill bits with a plasticine ring around the area to hold cutting fluid - much easier than faffing about with a blowtorch & risking the blade temper.
It's weaker than the Morakniv he started with, sure. But that's an inherent weakness to all folding knives. I'd wager it's a fair bit stronger than the Opinel though.
From the amount of them he says he's broken, I'd wager he uses his Opinel for a bunch of stuff you'd usually only ever use a fixed blade for. He said the tip broke off some of them, so I'm guessing he used them as a pry bar. Which is a bad idea even with a fixed blade. In fairness though it's a $15 knife so he's definitely not the only one to abuse them and treat them as disposable.
Wish you would consider selling me the Carbon Ops knives you broke the tips off of. I just need one actually. Don't want to cut a new knife in half just to make what I want.
И нахрена? Мора крепкий фикс страгалка, опинель легкий резак, теперь и не резак и нагрузку такую как на фикс при строгании не дашь. Переделка ради переделки. Шопопало.