Tool steels are used in many applications from plastic molding, metal stamping, forging, powder compaction and knifemaking. They are used to make the forming tools. Punches, dies, molds and screws...
"Tool steel" refers to the material in tools or dies that actually does the work in turning raw materials into usable parts. Example: In a stamping die the "tool steel" will cut or form the sheet...
A general heading of engineering would cover this, but there are many branches of engineering. Also many tasks fall into the category of crafts, these tend to be tasks learned by example rather than...