ratchet socket wrench
/ˈɹatʃɪt ˈbɒks ˈɛnd ˈɹɛntʃ/
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English · ratchet socket wrench中文 · 棘轮套筒扳手Español · llave de carracaFrançais · clé à douille à cliquet
意味：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.