ratchet socket wrench
/ˈɹatʃɪt ˈbɒks ˈɛnd ˈɹɛntʃ/
n
English · ratchet socket wrench中文 · 棘轮套筒扳手Español · llave de carracaFrançais · clé à douille à cliquet
Bedeutung：Wrench fitted with a pawl and a ratchet: the pawl sets the direction of rotation, while the ratchet lets the handle turn in the opposite direction over the socket.