マイナスのねじ回まわし

noun

flat-bladed screwdriver

A screwdriver with a flat tip, used for slotted screws. Often contrasted with プラスのねじ回し (Phillips screwdriver).

• このネジはマイナスのねじ回まわしで締しめてください。

  Please tighten this screw with a flat-bladed screwdriver.