Knife Making - Modern Tanto Knife -DIY Tanto from old file

In this video I'll show you how to make a Tanto knife out of an old file. My choice old file to make diy knife - because two groups of tool steels are used for the production of files: unalloyed improved steels with a carbon content of 1 to 1.3% (UYuA - U13A) or chrome-plated chrome steels ShKh15 or 13Kh. First of all, in the fire we need to release the steel, that is, heat it to a high temperature. Steel tempering is a stage of heat treatment and is used to reduce excessive rigidity, reduce brittleness and eliminate internal stresses in the metal. After heat treatment, it is easier to process the , steel products are tempered at temperatures that are several times lower than the quenching temperature, while maintaining the martensitic structure that ensures the hardness of the metal. This heat treatment is mainly applied to cutting tools and other tool steel products. When the file is heated, we bend it, give it a shape close to the template that we made from plywood. I make the tem