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 process]
7. [shaping and guiding equipment]
8. [shaping and guiding tools]

Anotations

Scope note:

Any of various tools, usually long bars or strips of wood or metal, having straight and true edges and used for drawing or cutting accurate straight lines or for testing levelness or the evenness of surfaces. For, usually shorter, instruments used primarily as guides for drawing lines, straight or curved, use "rulers (measuring tools)."