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Spyderco was founded in 1976 by Sal and Gail Glesser. In 1978, they settled in Golden, Colorado, and initially, the company focused on selling our first product: the Tri - Angle Sharpmaker™ which was primarily sold at fairs and trade shows around the country.

In 1981, Spyderco introduced their first folding knife, the C01 Worker. That knife pioneered the concept of a round hole in the blade for one - handed opening, a clip on the handle for carry at the top of the pocket, and the option of a serrated edg e for aggressive cutting performance. Those features revolutionized the knife industry and literally defined the form of the modern folding knife.

Spyderco's USA - Made knives are the cornerstone of our future and we've invested in a state - of - the - art factor y facility here in Golden, CO; our factory is a testament to our commitment to designing and producing the most innovative, reliable, and high - performance products in our industry. We are proud to be a U.S. manufacturer of High - Performance Matter Separator s