The NANIWA Yamato #400 is a compact Japanese sharpening stone designed to offer excellent cutting power in a lightweight and easy-to-carry format. Thanks to its magnesia manufacturing process, it quickly sharpens even high-hardness steels while maintaining a pleasant and precise sharpening sensation.

With its #400 grit, this stone is ideal for restoring a dull edge, maintaining knives, or preparing a blade for a finer finish. Its compact size makes it particularly practical for pocket knives, fruit knives, outdoor knives, or small precision tools.

Unlike stones requiring prolonged soaking, simply moisten the surface before use. However, it is recommended not to leave the stone immersed in water for a long period to preserve its properties.

Lightweight and easy to carry, it is an excellent solution for users looking for a high-performance and practical Japanese stone for everyday use.