- Grain: #5000 - Long: 210mm - Width: 70mm - Thickness: 15mm - Weight: 710g - Made in Japan
KUROMAKU is the world's first set of color-coded sharpening stones, each color representing a different degree of roughness.
The storage case makes it easy to transport the stones and can also be used as a sharpening base. These stones are water stones, but they can also be used as oil stones.
