bitstock

英

美

n.  手摇钻；钻柄

英英释义

noun

• a carpenter's tool having a crank handle for turning and a socket to hold a bit for boring
  Synonym:brace

双语例句

• The cutting part of a drill; usually pointed and threaded and is replaceable in a brace or bitstock or drill press.
  钻机的切割部分；通常是尖头的有螺旋状图案并且可以更换，用在钻柱钻柄或钻床上。