flare nut wrench
/ˈfleə ˈnʌt ˈɹɛntʃ/
n
English · flare nut wrench中文 · 油管扳手Español · llave de estrella abiertaFrançais · clé polygonale à têtes fendues
意味：Wrench with two many-sided heads, designed mainly to tighten plumbing joints.