Home of Ryan J Pitts, Artist, Metal Master, Product facilitator, founder of StrongerGrip. www.strongergrip.com Co-founder of strongerthanu.com Bringing ideas to life
A polearm would be better use of wasted material for something that long and thick, not practical. If something has to be long, it still has to be some form of lightweight if the intention is purely slicing or cutting, poking even. Something like that, similar probably to the broadsword, mostly shoulders, and gravity, probably. But anything sharp enough won't need too much force behind it.. so, you do have alot of guys and figures that are likely exaggerated, and people that do reenactments that aren't exactly honest and accurate either, doing bare minimum, Hollywood stuff, and zero practicality or thought beyond tropes.
Shut the hell up, you've never held a pole arm or a sword in your entire life, and the people who told you what you're regurgitating here probably haven't either.
Maybe just to show possibilities. You'r not always allowed to use a hole saw or even a grinder everywere. Friend of mine used his jig saw with metal cutting blade when he needed a permit to make sparks inside a factory/warehouse or where ever his clients were located.