I agree with this Making "good" steel is much like baking a cake. different recipes of steel produce different types of steel but its mostly in the baking how well the recipe turns out. In the case of awls you can easily, due to the small size and exactness needed in annealing and tempering of the blade make one to brittle or to soft from the exact same piece of stock. Hardness also affects how easily the tool can be sharpened, I prefer to have a tool i can sharpen as well as one that wont break when dropped or snap when it gets in a bind for any reason. The difference from old tools and new tools is a matter of quality control of the product. old tools = more hands on, smaller production rate is more quality control. New tool + mass produced less hands on less ability to find mistakes in any one of the many processes that go into making "good" steel.