Nakayama Asagi Whetstone

Nakayama Asagi – Natural Japanese Water Stone

Nakayama is one of the oldest and most renowned natural whetstones from Japan, with a quarry history of over 900 years. This stone comes from the famous Nakayama mine, known for producing highly consistent and high-performance finishing stones.

This Asagi-type stone has a medium hardness (rated 4 – 4+), making it versatile and user-friendly. It delivers excellent uniformity and refined feedback, suitable for both water-only use and slurry sharpening – either from the stone itself or using nagura stones. This flexibility allows for a wide range of sharpening techniques.

• Stone size: 150×25×5–6 mm (6”×1”)

• Base size: 160×25×3 mm (6”×1”)

• Material: natural Japanese stone

• Hardness: 4+

• Grit rating: 8000–10000