SO- ISSOU is a premium resinoid-bonded finishing stone designed to deliver a creamy, smooth sharpening experience.
With its mild softness and cushioning feel, it gently follows the blade’s curve, allowing for a refined cloudy finish that beautifully brings out the contrast between the edge and the jigane (core and cladding).
This stone requires only 1–2 minutes of soaking before use, providing stable surface performance throughout sharpening.
Perfect for the final touch, the SOU ISSO offers a delicate balance between softness, control, and aesthetic refinement —
creating a finish that feels as elegant as it looks.

“SO- ISSOU” — for those who seek the art in sharpening.

Specifications

• Grit: #6000 (Fine)

• Abrasive: WA (White Alumina)

• Bond: Resinoid (resin bond)

• Size: approx. 200 × 70 × 20 mm

• Weight: approx. 520 g

• Recommended use: Final polishing and edge refinement for a smooth, mirror-like finish

※The knife (21cm Gyuto) shown is for size comparison only. 

※This listing is for the whetstone only.