star drill
English Dictionary
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star drill Definition
(n)
a
steel
rock
drill
with
a
star
-
shaped
point
that
is
used
for
making
holes
in
stones
or
masonry
;
it
is
operated
by
hitting
the
end
with
a
hammer
while
rotating
it
between
blows
star drill Synonyms
star drill
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