Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Tools and Equipment (hierarchy name)
5. equipment
6. [equipment by material processed]
7. metalworking equipment
8. [equipment for forging and metal-shaping]
9. [tools for forging and metal-shaping]

Anotations

Scope note:

Half metal balls, which are filled with sand and covered with a layer of pitch. These form the basis for making chasing tools: the pitch fixes the object and forms a springy surface. By heating the pitch ball, the object is released. There are various recipes for making chasers pitch, but black or brown pitch is always the main ingredient.