The blade of the Morakniv Risberg 14650 Polished 12C27, Deep Forests Polypropyleen, outdoor knife measures 8.9 cm in length and 2 mm in thickness. The total length is 20.5 cm. Blade made of Sandvik 12C27 steel The blade is made of Sandvik 12C27 steel, a corrosion-resistant steel from Sweden that was specially developed for knives. It is a steel grade that strikes the perfect balance between toughness, ease of sharpening, corrosion resistance and sharpness retention. This knife has a scandi grind. As the name somewhat suggests, this method of sharpening originated in Scandinavia. A scandi edge excels at wood carving, which is why it is a popular choice for bushcraft knives. Sharpening a scandi edge is very easy, because the wide blade automatically guides you over the sharpening stone.. The blade has been polished, this is a premium blade finish that leaves no room for error. A polished blade ensures minimal friction while cutting, making the knife cut like a dream.