This is an authentic natural Japanese finishing whetstone from the Numata region of Gunma, Japan, known as "Numata Tora." Despite its compact "Koppa" (fragment) size, it is a capable finishing stone that produces a high-quality black sharpening slurry, which is highly effective for refining the edges of kitchen knives, woodworking planes (Kanna), and chisels. It is an excellent, budget-friendly entry point for those looking to experience the performance of authentic Japanese natural stones.
The item is pre-owned. The sharpening face has been resurfaced (lapped) for immediate use. As is common with natural "Koppa" stones, the shape may be irregular, and the bottom side retains its raw, natural state. Please review the photos to confirm the exact shape and size.
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DDP: For U.S. shipments, applicable import fees are included in the listed price and checkout total. You won’t be charged additional import fees after checkout.