单螺旋木工钻头
/ˈsɒlɪd ˈsɛntəɹ ˈɔːɡə ˈbɪt/
n
English: solid center auger bit · 单螺旋木工钻头
English · solid center auger bitEspañol · broca helicoidal centralFrançais · mèche hélicoïdale à âme centrale
释义：Bit made up of a central shank encircled by a twist; it is very durable and especially designed for making deep holes.