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solid center auger bit /ˈsɒlɪd ˈsɛntəɹ ˈɔːɡə ˈbɪt/ n

中文：单螺旋木工钻头

中文 · 单螺旋木工钻头Español · broca helicoidal centralFrançais · mèche hélicoïdale à âme centrale
Meaning：Bit made up of a central shank encircled by a twist; it is very durable and especially designed for making deep holes.
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Drill bits and drilling tools

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