noun.Hand tool which consists of a crank which holds a fittedrotatingdrill bittip, designed to boreholes in rigid materials, by cutting a disc in a spiralfashion.
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noun.
a carpenter's tool having a crank handle for turning and a socket to hold a bit for boring
Word Usage
"This can be seen in figure 39 in a transitional-type bitstock (accession 319556) from the Low Countries."