OK, I've bought this book and I have some questions. How do you make a good cheap forge? The one from fire brick seems good, but why is the hole all the way thru? Why not 3/4 way thru? Then less heat would get out right? I really want to make a knife like his from the series the book is named after. Small skinner, made from a car's coil spring in a one brick furnace, stick tang, round branch for handle. Darn I may be hooked! (And I was just starting to get decent at stock removal). The closest thing I've come to forging is casting lead bullets though! If I can find a vise, can you buy hardie tools somewhere online? Do you need hardie tools to make knives? Ironglow and VTDW are you listening?