In 1984, they made and sold 30,000 tools, 70,000 the following year, and by 1993, they were selling more than a million of the original Leatherman tool. The secret of Leatherman's success?

This is part of InsideHook’s list of The 100 Best American-Made Products, a celebration of the gear, clothes and goods that make up our lives, and are the life’s work of our fellow Americans.