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A hand drill is the simplest primitive method to produce rapid rotary motion of a rod. It consists in holding the rod vertically between both hands and moving these back and forth, in opposite directions, as in rubbing them. The rod typically is one or two feet long and half an inch in diameter.
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rod drill hands hand top also primitive vertically back used either must pressure tool survival floating simplest method produce rapid
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Hand drill | is a | simplest primitive method to produce rapid rotary motion of a rod | 0.90 | text |
| wood | instance of | A hand drill could also be used as a tool for drilling holes in hard materials | 0.80 | text |
| stone | instance of | A hand drill could also be used as a tool for drilling holes in hard materials | 0.80 | text |
| or bone.For either use | instance of | A hand drill could also be used as a tool for drilling holes in hard materials | 0.80 | text |
| the hands must also exert downward pressure while spinning the rod | instance of | A hand drill could also be used as a tool for drilling holes in hard materials | 0.80 | text |
| Hand drill | related to External links | Video | 0.60 | section |
| Hand drill | related to External links | YouTube | 0.60 | section |
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