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Twist drill
Meaning
Noun
●
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.
Sourced from
Wiktionary
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