Curso: Introducing Marble Tools, Tema: Bow Drill

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Lesson Overview
- Seleccionar actividad This lesson introduces the basic tools used in a m...
  
  This lesson introduces the basic tools used in a marble workshop.

Bow Drill
- Seleccionar actividad Drills rotated by a cord or string wrapped tightly...
  
  Drills rotated by a cord or string wrapped tightly around it and strung to a bow.