Crumb
Jr. Member
- Feb 9, 2020
- 95
- 272
- Detector(s) used
- Garrett 400 ace
- Primary Interest:
- All Treasure Hunting
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When starting a fire with a bow drill you need a rock with a dimple to stabilize the drill at the top. The rock acts like a bearing. In Boy Scouts we called that rock a "thunderbird". Not sure that's what it is but it could be. It might just be an unfinished clay bead. Gary