We may receive a commission on purchases made from links. If you're into tools at all, and even if you're not, you're probably familiar with ratchet and socket wrenches. The two phrases are used ...

In this in-depth video, we take you behind the scenes of how these durable and reliable tools are crafted, from raw metal to a finished wrench that can handle some of the toughest jobs on Earth.

This week, thanks to 3-D printing, astronaut and ISS commander Barry “Butch” Wilmore, had a wrench he needed manufactured by a printer in just four hours.