The Naniwa Super Stone line sits near the top of what Naniwa makes - high-quality ceramic compound stones at 20mm thickness that outlast most cheaper stones sold at 10mm. CKTG is the sole North American distributor. The ceramic formulation strikes a balance between polishing ability and durability: these stones tend to run on the softer side, which means they dish more readily than harder stones like the Shapton Pro but also feel more responsive and give better tactile feedback during sharpening. Splash-and-go use - no soaking required. Flatten regularly with a diamond plate when dishing develops.
The 5K Super Stone is a finishing stone that produces a sharp, moderately polished edge well suited for general kitchen use. After a 1K or 2K session this stone removes the medium scratch pattern and refines the edge to a level that performs well across vegetable work, protein slicing, and general prep. It is a practical stopping point for most kitchen knife users: sharp enough for clean, efficient cutting without requiring the additional time investment of a 10K or 12K. The softer Super Stone bond provides good feedback and keeps the stone cutting actively throughout a session. No soaking required. 210mm x 70mm x 20mm.
What Customers Are Saying: Eleven reviewers confirm it is a strong 5K finishing stone. The most consistent themes are responsive feel, a clean polishing action, and good performance as a standalone finisher in a simple two or three-stone progression.
Care Instructions: Splash-and-go - no soaking required. Add water during sharpening as needed. Flatten with a diamond plate when dishing develops. Store dry.
The 5K Super Stone is a finishing stone that produces a sharp, moderately polished edge well suited for general kitchen use. After a 1K or 2K session this stone removes the medium scratch pattern and refines the edge to a level that performs well across vegetable work, protein slicing, and general prep. It is a practical stopping point for most kitchen knife users: sharp enough for clean, efficient cutting without requiring the additional time investment of a 10K or 12K. The softer Super Stone bond provides good feedback and keeps the stone cutting actively throughout a session. No soaking required. 210mm x 70mm x 20mm.
What Customers Are Saying: Eleven reviewers confirm it is a strong 5K finishing stone. The most consistent themes are responsive feel, a clean polishing action, and good performance as a standalone finisher in a simple two or three-stone progression.
Care Instructions: Splash-and-go - no soaking required. Add water during sharpening as needed. Flatten with a diamond plate when dishing develops. Store dry.
- Brand: Naniwa
- Line: Super Stone
- Grit: 5,000
- Use: Splash and Go (no soaking)
- Thickness: 20mm
- Dimensions: 210mm x 70mm x 20mm
- Origin: Japan
- Note: CKTG is sole North American distributor
Product ReviewPosted By: Yes No
This thing is UNREAL!Posted By: Rodolfo - verified customer
17 people found this review helpful
Oh my god! This was my first time ever using a water stone to sharpen a knife. I had this 7 knife my head chef gave me that was extremely dull and wouldn't push cut paper. I spent about 10 minutes on this and then used Murray Carter's edge sharpness test. Needless to say, I have razor sharp cuts on most of my fingers.I can't wait to learn how to use this thing properly without cutting too much into it and making ridges! haha
17 people found this review helpful
Oh my god! This was my first time ever using a water stone to sharpen a knife. I had this 7 knife my head chef gave me that was extremely dull and wouldn't push cut paper. I spent about 10 minutes on this and then used Murray Carter's edge sharpness test. Needless to say, I have razor sharp cuts on most of my fingers.I can't wait to learn how to use this thing properly without cutting too much into it and making ridges! haha
Product Review
Product Review
Product ReviewPosted By: Yes No
This thing is UNREAL!Posted By: Rodolfo - verified customer
17 people found this review helpful
Oh my god! This was my first time ever using a water stone to sharpen a knife. I had this 7 knife my head chef gave me that was extremely dull and wouldn't push cut paper. I spent about 10 minutes on this and then used Murray Carter's edge sharpness test. Needless to say, I have razor sharp cuts on most of my fingers.I can't wait to learn how to use this thing properly without cutting too much into it and making ridges! haha
17 people found this review helpful
Oh my god! This was my first time ever using a water stone to sharpen a knife. I had this 7 knife my head chef gave me that was extremely dull and wouldn't push cut paper. I spent about 10 minutes on this and then used Murray Carter's edge sharpness test. Needless to say, I have razor sharp cuts on most of my fingers.I can't wait to learn how to use this thing properly without cutting too much into it and making ridges! haha
Product Review
Product Review
Product ReviewPosted By: Richard - verified customer
21 people found this review helpful
This Naniwa super stone is a good size soft stone. The finished bevel is mirror shiny; shiner than other 5000 grit stones.It is easy to gouge the stone especially when grinding the edge leading.
21 people found this review helpful
This Naniwa super stone is a good size soft stone. The finished bevel is mirror shiny; shiner than other 5000 grit stones.It is easy to gouge the stone especially when grinding the edge leading.
Product Review
Product ReviewPosted By: Wilkey - verified customer
21 people found this review helpful
The Naniwa SS 5K stone is a soft, slow stone that is able to put on a mirror polish that belies it's grit rating. Easy to use, moderate feel for a beginner, tends to load up quickly on some steels. Overall, a good stone to follow a 1K or 1.2K like the Bester. Follow this with a strop on felt with diamond spray and the knives are good for the week.
21 people found this review helpful
The Naniwa SS 5K stone is a soft, slow stone that is able to put on a mirror polish that belies it's grit rating. Easy to use, moderate feel for a beginner, tends to load up quickly on some steels. Overall, a good stone to follow a 1K or 1.2K like the Bester. Follow this with a strop on felt with diamond spray and the knives are good for the week.







