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Box-end wrench
01
llave de boca cerrada, llave de vaso
a hand tool with a closed-looped, box-shaped end that fits snugly around the flats of nuts and bolts, providing a secure grip and allowing for the application of torque during tightening or loosening tasks
Ejemplos
She had to use a box-end wrench to loosen the stubborn nut on the metal frame.
Ella tuvo que usar una llave de cubo para aflojar la tuerca obstinada en el marco de metal.
