from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A drill having deep helical grooves along the shank from the point.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A rotating cutting tool, used for cutting holes in rigid materials, that consists of an essentially conical point, relieved and fluted to form cutting lips, and spiral flutes which direct the chips away from the lips and toward ejection from the hole.
from the GNU version of the Collaborative International Dictionary of English
- n. a drill the body of which is twisted like that of an auger. See Illust. of Drill.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a bit or drill having deep helical grooves
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