>>5288759Now I know what you're thinking. "Didn't we just discard a lot of useful parts from that chainsaw?" Not to worry, we'll save the chain as well!
Now this next idea may require a little more than what we have now, considering the other one really only needs us to cut up one sheet of metal and then hammer it basically. But it should be fairly easy to remedy. All this next idea needs is some form of animal or creature hide, or any tough material, some strong thread, and some kind of needle. The thread may be substituted for fishing wire, should we ever venture out to the lake I'm sure we could find some. The leather could be acquired by us skinning and tanning an animal or wood monster we encounter.
Now the idea is to use said hide to fashion into a sort or bracer around the arm, which we then embed the chain into via loops it goes into. We then feed that chain into a sort of handle made of leather so we can hold it without gouging our hands.
We this we could rip out chunks of our enemies, a useful tool for fleshy creatures or mechanical monsters with delicate parts just begging to be torn free.