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| FORM-FACTOR | 6" Mounted |
| ABRASIVE MATERIAL | Aluminum Oxide |
| BINDER | Vitrified |
| GRIT RATING | Coarse Extra Coarse Extra Fine Fine Medium Ultra Fine |
| USED/ROUTINE | Water |
| ORIGIN OF MATERIAL | 🇯🇵Japan |
Soaking Japanese whetstone for regular touch-ups, bridge sharpening, and refined edge maintenance.
Grit
The Suehiro Ouka #3000 works as an in-between grit and can serve as a bridge between a 1K and 8K whetstone.
Touch-ups
The #3000 grit is useful for users who like to touch up their knives daily or every 2–3 days without overusing a 1K stone.
Feel
Ouka has the smooth feel of the Rika 5K lineage while cutting a bit faster for practical sharpening maintenance.
Suehiro Ouka
The Ouka #3000 whetstone continues the Rika lineage within the Suehiro professional family.
It offers durability, reliability, and sharpening satisfaction for users who need a refined but still effective intermediate stone.
How to use
Pre-soak the stone for 5–10 minutes before use and apply water to the surface during sharpening when needed.
After use, rinse the stone, wipe it dry with a towel, and allow it to air dry at room temperature. Do not leave it in water.
Specifications


