Suehiro has been producing sharpening stones in Niigata Prefecture since 1932, and the Cerax line sits at the top of their synthetic stone range. The stones are made with a high concentration of abrasive particles and minimal binder material, which produces a stone that cuts actively, builds slurry well, and provides good tactile feedback through the session. The Cerax line occupies a middle position on the hardness scale - softer than the Shapton Pro, harder than the Naniwa Super Stone - which gives it a responsive feel that experienced sharpeners often prefer for feedback-intensive work. Short soak before use is recommended for most grits; do not perma-soak.
The 6K Cerax is the finishing stone in the line - a high-grit polishing stone that produces a sharp, refined edge suited for all kitchen knife work. After a 1K session this stone removes the medium scratch pattern and leaves an edge with a clean polish that performs well across vegetables, proteins, and fine slicing work. Unlike the 320 and 1K, the 6K is splash-and-go - no soaking required, just add water to the surface and start sharpening. The ceramic formulation performs well on high-hardness steels at finishing grits, which is relevant for HAP40, SG2, and similar hard steels where some finishing stones struggle to cut effectively. The stone comes with a plastic base for stability during use, a plastic storage box, and a nagura for surface conditioning. 205mm x 73mm x 27mm.
Care Instructions: Soak for 5-10 minutes before use on the 320 and 1K. The 6K is splash-and-go. Add water during sharpening as needed. Flatten with a diamond plate when dishing develops. Do not perma-soak. Store dry.
The 6K Cerax is the finishing stone in the line - a high-grit polishing stone that produces a sharp, refined edge suited for all kitchen knife work. After a 1K session this stone removes the medium scratch pattern and leaves an edge with a clean polish that performs well across vegetables, proteins, and fine slicing work. Unlike the 320 and 1K, the 6K is splash-and-go - no soaking required, just add water to the surface and start sharpening. The ceramic formulation performs well on high-hardness steels at finishing grits, which is relevant for HAP40, SG2, and similar hard steels where some finishing stones struggle to cut effectively. The stone comes with a plastic base for stability during use, a plastic storage box, and a nagura for surface conditioning. 205mm x 73mm x 27mm.
Care Instructions: Soak for 5-10 minutes before use on the 320 and 1K. The 6K is splash-and-go. Add water during sharpening as needed. Flatten with a diamond plate when dishing develops. Do not perma-soak. Store dry.
- Brand: Suehiro
- Line: Cerax
- Grit: 6,000
- Use: Splash and Go (no soaking)
- Includes: Plastic base, storage box, nagura
- Dimensions: 205mm x 73mm x 27mm
- Origin: Niigata, Japan
