Product:DMS-283B chef knife bladeDMS-283D nakiri knife bladeDMS-283C kiritsuke knife bladeDMS-283E utility knife bladeDMS-283A butcher knife bladeBlade Material: 67 Layers VG10 Damascus SteelCore Hardness: 60+/-2HRCAngle of theEdge: 15 Degree one sideSurface Process: Polishing Processing, High-end AppearanceCharacteristics: Sharp and durable, Super anti rust,Light energySharpness level: The level of cutting force: 6.0-8.0 N international standards.Packing: Beautiful gift box.