How to sharpen the Blackhawk XSF-1 combat dagger

See how to sharpen the Blackhawk XSF-1 combat dagger. This knife requires a different approach to sharpening compared to regular daggers and knifes.

Designed by former Canadian special operations soldier and knife maker Brent Beshara, the XSF-1 (pronounced "ex-ces-sive one") is the ultimate evolution of the combat dagger. The triple-eded blade is new-wave in knife-making, and sharpening it requires a little knowledge, so watch this video tutorial and learn how.