thanks you can actually work the 1/4" d2 with a map gas torch, I haven't tried the 3/8" but I don't see why not. I've made several small wood chisels and carving tools with this stuff. its great way to learn a bit about the forging process without all the huge blacksmithing tools as well. Here is my source https://www.grainger.com/category/raw-materials/metals/tool-steel/tool-steel-rods-discs?searchQuery=d2+drill+rod&sst=4&searchBar=true
thanks