The video below shows the process in all its simplicity. The tool steel of the drill bit is far harder than the mild steel of the hammer, but still soft enough to take an edge, and the resulting ...

Different steels yield distinctive spark characteristics. Carbon steels, like mild steel or high-carbon tool steel, produce bright, white-yellow sparks that branch out. Mild steel gives long sparks ...

To that end, this beginner lesson in heat-treating steel from [Blondihacks] demonstrates ... By measuring the size of the indentation made by the tool, the hardness can be determined.

Anticipated expansion in the automotive sector will likely stimulate growth in the market for high-speed steel cutting tools, ...