Authentic Japanese Natural Shiro-Nagura from Mikawa, Aichi.
This Mikawa Shiro-Nagura is a beautifully grained natural polishing stone traditionally used during the Uchigumori stage of Japanese sword polishing. Its oversized format, larger than the traditional 24-kiri size, provides a generous working surface and excellent ease of use.
With a medium to medium-hard hardness, it produces a smooth, creamy slurry and creates an elegant kasumi finish. It is ideal as an intermediate or pre-finishing stone for kitchen knives, chisels, plane blades, razors, and Japanese sword polishing.
The surface displays beautiful woodgrain-like natural patterns, making this stone highly attractive both as a practical tool and as a collectible.
Specifications
Origin: Mikawa, Aichi, Japan
Weight: 1,695g
Size: Approx. 228 × 92 × 42 mm
Hardness: ★★★☆☆ (Medium-hard)
Type: Shiro-Nagura
Condition: Unused, professionally lapped and ready to use. No cracks or major defects. The sides are sealed with Ishisan, a traditional water-based protective coating.
