Watch the process of transforming an old metal file into a functional knife, including shaping, grinding, and finishing ...

In this video, we cook Woots steel from tool bits. From the ingot that turned out we make a chopping knife. We decided to make the handle for the knife from a particularly durable material - carbon.

The production of knives flourished in Sakai due to the rich history of traditional metal processing techniques. Richard A. Brooks/AFP via Getty Images Eighty-five-year-old Etsuro Ikegami wipes the ...