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Humans have improved the simple wrench by making box wrenches, off-set wrenches and ratchet wrenches. An indirect improvement was the invention of sockets, so the head of a bolt or nut could be totally gripped.
Wiki User
∙ 11y ago
Wiki User
∙ 7y agoBy making box wrenches, so that head of the bolt or nut is being gribbed while fixing some material.
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