Alsoろっかくぼうスパナ
- hex key; hexagonal wrench key; Allen key (TM); Allen wrench (TM)
noun (common) (futsuumeishi)
Generated: A hex key is a tool used to drive fasteners with a hexagonal socket. It is commonly used in assembling furniture or machinery and comes in various sizes to fit different screws.
Please use this hex key to tighten the screw.