Japanese Natural Whetstone 1235g Shohonyama 正本山合砥 Lv 5.0 Grit 12000 特上
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Product details
| Management number | 23783501 | Release Date | 2025/11/19 | List Price | $89.40 | Model Number | 23783501 | ||
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Experience the pinnacle of sharpening refinement with the Shohonyama 正本山合砥, a 1235g natural finishing whetstone quarried from the legendary Nakayama mines near Kyoto, Japan—historically revered as the "king of stones" among master swordsmiths, carpenters, and bladesmiths. This rare, gray-layered 40-type toishi, graded at an elite **Level 5.0** (特上 / tokujo, or "extra-superior"), delivers an ultra-fine **#12000 grit** polish that produces mirror-like edges with silky smoothness and whisper-quiet feedback, ideal for final-stage honing of kitchen knives, chisels (鑿), planes (鉋), carving tools, woodblock knives, and even straight razors.
Weighing a substantial 1235g with generous dimensions, this bench-sized stone offers ample surface area for stable, consistent strokes, while its dense, glassy matrix ensures minimal dish-out and exceptional longevity—even under professional use.
There is a slight depression on the lower left side of the stone surface. Avoiding it will not affect sharpen.
| Category | Home > Kitchen Cutlery > Kitchen Knife Sharpeners |
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| Size | N/A |
| Brand | None |
| Condition | New |
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Kitchen Knife Sharpeners
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