Naniwa is one of the two most trusted sharpening stone brands in Japan - and the Chosera Professional is their flagship line. A hard ceramic bond that builds a rich slurry, stays moist during use, and gives more tactile feedback than the harder Shapton Pro stones. No soaking required - splash with water and begin. At 210mm x 70mm x 20mm the Chosera is a full-size stone with real mass that stays stable on the holder during use. One of the most consistently recommended sharpening stones for kitchen knives at any price point.
The Chosera Professional 10000 is the highest grit in the line - an ultra-fine finishing stone for sharpeners who want the absolute maximum refinement from a splash-and-go ceramic stone. Daniel calls it just as good as expected - fast cutting for the grit and a great finish on Aogami blue steel with confidence it will perform equally on VG10. Leo notes the stone is thicker than a standard Chosera - approximately 15 percent heavier - which extends its lifespan significantly for a grit used occasionally for most kitchen knife work. Dishing is minimal at this hardness. For single-bevel knives, razors, and high-hardness carbon steels where the full potential of the steel is worth unlocking, the Chosera 10000 is the right tool.
What Customers Are Saying: Four five-star reviews. Daniel calls it exactly as good as expected - fast cutting and great finish on Aogami blue steel, confident it will work on VG10. Leo notes the stone is thicker than standard Chosera stones - about 15 percent heavier - which extends the lifespan considerably since a 10000 grit stone sees less use than lower grits in most sharpening routines. Minimal dishing due to the hard bond. Multiple reviewers confirm this stone delivers what the price asks for - a top-tier ultra-fine finish from a brand with a proven track record at every grit below it.
Care Instructions: No soaking required - splash with water and use immediately. The Chosera is a harder stone than most synthetic alternatives but benefits from keeping the surface wet during use. Rinse after each session to remove metal swarf and stone slurry. Allow to dry completely before storing. Flatten periodically with a diamond plate or lapping plate to maintain a true surface. The stone will dish more slowly than softer synthetics but flattening is still essential for consistent results.
The Chosera Professional 10000 is the highest grit in the line - an ultra-fine finishing stone for sharpeners who want the absolute maximum refinement from a splash-and-go ceramic stone. Daniel calls it just as good as expected - fast cutting for the grit and a great finish on Aogami blue steel with confidence it will perform equally on VG10. Leo notes the stone is thicker than a standard Chosera - approximately 15 percent heavier - which extends its lifespan significantly for a grit used occasionally for most kitchen knife work. Dishing is minimal at this hardness. For single-bevel knives, razors, and high-hardness carbon steels where the full potential of the steel is worth unlocking, the Chosera 10000 is the right tool.
What Customers Are Saying: Four five-star reviews. Daniel calls it exactly as good as expected - fast cutting and great finish on Aogami blue steel, confident it will work on VG10. Leo notes the stone is thicker than standard Chosera stones - about 15 percent heavier - which extends the lifespan considerably since a 10000 grit stone sees less use than lower grits in most sharpening routines. Minimal dishing due to the hard bond. Multiple reviewers confirm this stone delivers what the price asks for - a top-tier ultra-fine finish from a brand with a proven track record at every grit below it.
Care Instructions: No soaking required - splash with water and use immediately. The Chosera is a harder stone than most synthetic alternatives but benefits from keeping the surface wet during use. Rinse after each session to remove metal swarf and stone slurry. Allow to dry completely before storing. Flatten periodically with a diamond plate or lapping plate to maintain a true surface. The stone will dish more slowly than softer synthetics but flattening is still essential for consistent results.
- Brand: Naniwa
- Line: Chosera Professional
- Grit: 10000
- Type: Ceramic Whetstone
- Soak Required: No - Splash and Go
- Dimensions: 210mm x 70mm x 20mm (8.25 x 2.75 x 0.8 inches)
- Item Code: NA-0310X
Reviews
4 review(s) WRITE A REVIEW (Reviews are subject to approval) Naniwa Chosera 10,000 Grit Product ReviewPosted By: Leo Barr - verified customer
19 people found this review helpful
It is a very hard stone yet it polishes it is thicker than a standard Chosera probable 15% since it is an occasional stone unless it is used to sharpen razors daily it is likely to last many years .Dishing is minimal since the stone is so hard many high grit stones are soft it also means that you can work quickly on it without fear of cutting into it .Well worth the money especially from CKTG.
19 people found this review helpful
It is a very hard stone yet it polishes it is thicker than a standard Chosera probable 15% since it is an occasional stone unless it is used to sharpen razors daily it is likely to last many years .Dishing is minimal since the stone is so hard many high grit stones are soft it also means that you can work quickly on it without fear of cutting into it .Well worth the money especially from CKTG.
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