Last Updated
：2025/12/05
Quizzes for review
A mechanical hammer in which the blow is delivered or augmented by the force of a spring.
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spring hammer
The workshop used a spring hammer, whose blows were augmented by a powerful coil spring, to shape the metal blanks.
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The workshop used a spring hammer, whose blows were augmented by a powerful coil spring, to shape the metal blanks.
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