Quote Originally Posted by Bruno View Post
No absolutely not.
Rebar is only mild steel. It will have a very low carbon content which cannot be hardened. Kinda like railroad spikes.
They're fun to play with and make ornamental things but for knives and edged tools it cannot be used.
If you want to repurpose old steel, use files. Old files will have a very high carbon content and can successfully turned into edged tools.
Yeah what he said.....