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. drilling equipment
8. drilling tools

Narrower term/s

• jackhammers [NP]
• stone working drills [NP][+]
  • aiguilles (drills)
  • hammer drills
  • rock-drills
• plugging chisels [NP]
• [drills by form][+]
  • bow drills [+]
    • fire bows [NP] [+]
      • mamalhuaztli
  • breast drills
  • pump drills
  • push drills
  • twist drills
  • counterbores
  • barrel drills
  • pirori
  • double disk drill [NP]
  • dental drills [NP]
  • disk drill [NP]
  • hoe drill [NP]
  • press drill (agricultural equipment) [NP]
  • seed drill [NP]
  • shoe drill [NP]
  • single disk drill [NP]
• [drills by mode of operation][+]
  • pneumatic drills
  • electric drills
  • hand drills
• power drills [NP]

Anotations

Scope note:

Large machines or hand tools used for making holes in a variety of materials. Drills typically have fluted or spiral shanks.