TheFirstHammer on MSN7d
Thermostatically Forging Heavy Nut Bolt Machine WheelsStep into the heart of a blazing factory where massive machinery wheels for nut and bolt systems are forged under extreme heat! Molten metal is shaped, pressed, and precision-cut to ensure unmatched ...
Apparently nobody noticed Leonardo Da Vinci's designs from the late 1400's for screw-cutting machines, because first machine to cut screws was built in 1568 by a French mathematician, Jaques Besson.
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