from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
- noun Any other style of
cutter, for example a spade drill, that is rotated and fed in a similar manner as a twist drill to of cut a hole in metal, wood or other materials.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a bit used in drilling for oil
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