Watch a Red Hot Metal Rod Get Wound Up Into a Coil Spring

By Casey Chan on at

Burn metal hot enough and you can do whatever the hell you want with it. Here’s a glimpse of how a coil spring, which is used in a car’s suspension, gets made.

It’s interesting to see that, even though the machines do most of the work, there are still a lot of hands involved. Just try not to imagine accidentally dropping it on your foot. [Road and Track]