PROFESSIONAL JAPANESE VG-10 STEEL CORE - Santoku knife is made of VG-10 steel core that has high hardness(62HRC), high toughness, and wear-resistant features. With vacuum heat-treatment and nitrogen cryogenic tempering, it ensures knifes extreme strength and durability UNIQUE PRACTICAL GROOVES DESIGN - Japanese knife is forged many times to achieve a unique and very beautiful natural casting texture. The special grooves design reduces the contact surface between food and blade, it prevents food from sticking on the blade and provides maximized the slicing efficiency HIGH-STANDARD CRAFTSMANSHIP - Damascus kitchen knives smiths hand sharpen the screamingly sharp edge with traditional Honbazuke method to be 15 degree per side to achieve super sharpness (6-8 N). Producing razor sharp blades for an effortless slicing experience