Wired.com has this story posted early this month on how the amazing Leatherman Tread was made... "Rivera had a sketch of the Tread before he even returned to work. It looked like a bit like a bike chain, with interlocking tools. Many Leatherman tools are “wearable,” but not like the Tread. A bracelet made sense: It allowed you to have your tools on you, literally, all the time. It also required each bit, wrench and driver to be tiny, so you wouldn’t encounter trouble from the TSA, Disney guards or anyone else. The longest, sharpest bit—a pointy sim card removal tool—is just under a quarter-inch long, well within TSA regulations. And there are no sharp edges on any of the links."

Read the full story on Wired.com.