Shapton Kuromaku #12000 Ceramic Whetstone

The Shapton Kuromaku #12000 is an ultra-fine polishing stone for those seeking the highest level of edge refinement. At 12000 grit, this stone removes the finest scratch patterns left by a high-grit finishing stone and produces a true mirror polish on the blade. It is the final step in a serious sharpening progression, and the results are immediately visible and tangible — a blade that reflects light cleanly and cuts with a smoothness that only a highly polished edge can deliver.
Like all stones in the Kuromaku series, the #12000 requires no soaking. At this grit level, minimal pressure and slow, controlled strokes are key. The ceramic abrasive is precisely graded, ensuring a consistent and even polish across the full edge of the blade. This stone performs particularly well on high carbon and single bevel Japanese knives where edge refinement is taken seriously.
Shapton is a Japanese manufacturer based in Shizuoka Prefecture, widely regarded as one of the finest whetstone producers in the world. The Kuromaku series — also known as the Shapton Professional series — is trusted by professional sharpeners and serious home cooks alike for its speed, consistency, and durability.

• Brand: Shapton
• Series: Kuromaku (Professional)
• Grit: #12000
• Dimensions: 210mm x 70mm x 15mm
• Weight: 710g (about 1.5 lbs)
• Material: Ceramic
• No soaking required, splash and go
• Made in Japan