Watch Woodworkers Carve the Thinnest Shavings Ever
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This gives a whole new meaning to the words "paper thin."
Japanese hand planes (kannas) can shave off layers of wood thinner than most tissue paper. Some shavings can get as small as 8 microns thick. For some reference, the average human hair is 50 microns in diameter.
Kannas normally sand down imperfections to create a smooth finish.
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