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 FIGURE 7-4
Boring and Coring Tools: A, Auger-Type Bit used for
Extracting Bored Shaving Samples; B, Plug Cutter and Plug Extractor;
C, Increment Borer Consisting of Three Parts--
Extractor, Hollow Bit, and Case that also Serves as a
Handle for Turning Coring Bit into and out of Wood Members
7-7
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