High hardness with excellent flatness retention.
Superb edge control, ideal for uraoshi (back-side sharpening).
As praised by professionals, the ALTSTONE RIN represents the ideal form of a hard sharpening stone.
It offers firm density without excessive slipperiness, delivering a smooth and precise sharpening feel.
The result is a naturally lustrous finish, reminiscent of fine Japanese natural whetstones.

Specifications

• Grit: #5000 (Fine)

• Abrasive: WA (White Alumina)

• Bond: Vitrified (ceramic bond)

• Size: approx. 180 × 60 × 18 mm

• Weight: approx. 450 g

• Recommended use: Fine polishing and final edge preparation

• No soaking required (splash and sharpen)

※The knife (21 cm Gyuto) shown is for size comparison only.
※This listing is for the whetstone only.