Columbia River Knife & Tool BERSERKER, 4.65 Axe w/ Hammer Edge, 19 OAL, 1055 Carbon Steel, Manganese Phosphate Coating, Tennessee Hickory Handle 2736 Get a glance of the Berserker /bur-zur-kr/ Viking-style axe and you know trouble's coming; if you're an unsplit round" that is. The long cutting edge of the bearded axe blade is a powerful companion for big-swing jobs" fine slicing" and everything in between.