Morakniv Wood Splitting 220 Knife with Carbon Steel Blade, 4.5-Inch Wood splitting knife with carbon steel blade Oiled birch wood handles Limited lifetime manufacturers warranty. Blade Thickness: 0.10" (2.5 mm), Blade Length: 4.5" (114 mm), Total Length: 14.5" (368 mm), Weight: 5.4 oz. (154g)