Most oft then not, cheap tools, are cheap tool steal. While some are able to be hardened, they are not the greatest steels to be made knives as they won't tend to hold a good edge along with other properties. While some tools, like good files are mostly made of W2 which is an excellent knife steel that will make and hold a nice edge and is relatively easy to heat treat. W2 like a lot of knife steels doesn't have much of a chromium content so there for needs to be taken care of or it will rust.
|