KOTAI sharpening set, including:

• Double-sided sharpening stone 2000/6000 grit
• Non-slip bamboo base
• Toishi flattening stone
• 15-degree angle guide

The KOTAI sharpening stone is ideal for Japanese professional knives. It is made from hardened ceramic powder and requires soaking in water for 10 to 15 minutes before use.

The regular 2000 grit side is suitable for frequent sharpening and blade maintenance, while the fine 6000 grit side is intended for polishing the blade, achieving sharp edges.

The KOTAI sharpening stone does not develop dips or slopes and offers long-lasting durability, requiring less maintenance. The non-slip bamboo base with rubber feet provides safe use during sharpening.

The package also includes the Toishi stone for maintaining the sharpening stone in good condition. Regular use suggests daily sharpening for professionals and once every six months for amateurs.

General guidelines for sharpening stones:

• 200 - 240 - Coarse surface: Ideal for very worn knives or repairs.
• 800 - 2000 - Regular surface: Suitable for frequent sharpening.
• 3000 - 4000 - Fine surface: Used for additional sharpening.
• 6000 – 12000 - Extra fine surface: Used for final polishing.