A craftsperson who specializes in making or forming coils, especially metal coils or springs.
From 'coil' + 'smith' (a maker or worker in metal). 'Smith' comes from Old English 'smið,' meaning one who works metal, from the same root as 'smite' (to strike).
Before industrialization, coilsmiths were highly skilled artisans—making perfect springs by hand required understanding metallurgy intuitively, by feel and sound of the hammer.
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