The Morakniv 106 and 120 Wood Carving Knives are made in Sweden from Laminated Steel – layers of high carbon steel where the core is hardened to 59-60 HRC surrounded by a softer alloyed steel layer. This steel is hot rolled which results in a strong material but one that has a rougher surface finish. You may see a natural roughness and some variation in color of the blade surface. This is a natural occurrence and does not in any way affect its performance. Please know that your Morakniv will stay sharp and last a lifetime.