六ろっ角かく棒ぼうスパナ

noun

hex key; Allen key; Allen wrench

A tool used to drive bolts and screws with a hexagonal socket. 六角棒スパナ is the common Japanese term; 'Allen key' is a trademarked name often used generically.

• この家か具ぐを組くみ立たてるには六ろっ角かく棒ぼうスパナが必ひつ要ようです。

  You need a hex key to assemble this furniture.