Bundle - 3 Items: Morakniv Craft Robust Carbon Steel Knife, Morakniv Craft Pro S Stainless Steel Knife, and Morakniv Craft Pro C Carbon Steel Knife Bundle - 3 Items: Morakniv Craft Robust Carbon Steel Knife, Morakniv Craft Pro S Stainless Steel Knife, and Morakniv Craft Pro C Carbon Steel Knife Morakniv Craft Robust Carbon Steel Knife: Blade Thickness: 0.125 inches (3.2mm). Blade Length: 3.6 inches (91mm). Total Length: 8.11 inches (206mm). Weight: 4.9 ounces (140g). Morakniv Craft Pro S Stainless Steel Knife: Blade Thickness: 0.08 inches (2.0mm). Blade Length: 3.6 inches (91mm). Total Length: 8.11 inches (206mm). Weight: 4 ounces (115g). Morakniv Craft Pro C Carbon Steel Knife: Blade Thickness: 0.08 inches (2.0mm). Blade Length: 3.6 inches (91mm). Total Length: 8.11 inches (206mm). Weight: 4 ounces (115g). Most of the carbon steel knife models by Mora have unfinished spines. However, this will not affect the overall performance of the knife