Traditional Chinese tubular bow drill for carving jade.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...l_fullsize.jpg
Fullsize image: https://s3-us-west-1.amazonaws.com/h...1_fullsize.jpg
Previously:
Turning a wooden handle with bow lathe - GIF
Multi-hole drill - GIF
Ruger hand drill - photos
Large amethyst geode - GIF
Geode splitter - GIF
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