Diamond Stones

Unlock Flawless Edges with the Ultimate Sharpening Surface: The Naniwa Diamond Stone 1000 Step up to the pinnacle of sharpening technology with the Naniwa 1000 Grit Diamond Sharpening Stone. Precision-engineered in Japan for those who refuse to compromise on sharpness, this stone is the definitive tool for maintaining and restoring a perfect, razor-sharp edge. The 1000 grit is the ideal "workhorse" grade, expertly balanced to quickly erase dullness and establish a refined edge that is ready for use or further polishing. At its core lies a perfectly flat steel plate coated with high-density monocrystalline diamonds—the hardest and most durable abrasive available. This advanced construction gives it unparalleled cutting speed, allowing you to sharpen even the most challenging modern "super steels" (like S90V, ZDP-189, and Maxamet) and ceramics with remarkable ease. Unlike traditional whetstones, the Naniwa Diamond Stone will never dish, warp, or require flattening. It guarantees a perfectly true surface for the entire life of the stone, ensuring every pass contributes to a consistent, flawless bevel. For the discerning user, this isn't just a sharpener; it's a permanent upgrade to your entire sharpening system. Learn More