My eyes light up at anything with a sleek design, so you can bet they were as wide as golf balls when I saw that square tube knife by YouTube knife maker Koss: https://www.youtube.com/watch?v=x_M-ChNcArg&ab_channel=Koss Koss used 01 high carbon alloy steel (non-shrinking steel which hardens in oil) for the blade of his project. He started shaping…