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Naniwa Abrasives
Renowned in Japan and around the world, Naniwa produces a variety of "abrasive" tools for sharpening and engraving. We've hand selected their best ceramic whetstones for sharpening kitchen cutlery. All Naniwa products are extremely high quality.
Discover the precision and quality of Naniwa Abrasives, the industry leader in sharpening stones and abrasive tools since 1941. Esteemed for their exceptional craftsmanship and durability, Naniwa Abrasives are trusted by professionals worldwide for achieving razor-sharp edges on knives, tools, and blades.
Our extensive product range includes water stones, diamond stones, and specialty sharpening accessories designed to cater to the needs of chefs, craftsmen, and enthusiasts alike. Whether you're honing kitchen knives to perfection or maintaining woodworking tools, Naniwa offers a solution tailored to meet the most exacting standards.
Each Naniwa abrasive is crafted using advanced materials and techniques, ensuring consistent performance and longevity. Naniwa’s commitment to quality and innovation has cemented their reputation for precision and reliability; there’s a reason Naniwa stones are the preferred choice in the sharpening industry.
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Naniwa 600 Grit Diamond Sharpening Stone
Naniwa Diamond Sharpening Stones are uniquely made by taking the diamond aggregate and mixing with a 1mm thick bonding layer on a sturdy metal base. This ensures even distribution and constant cutting surface, every time, throughout the life of the stone. Used for very hard steel blades and ceramic blades. Learn More$215.00 -
Naniwa 400 Grit Diamond Stone
These stones feature a diamond abrasive layer embedded in resin, securely mounted on a durable metal base. Unlike many diamond plates that use a single layer of diamonds, these stones boast a 1mm-thick diamond-infused resin layer. This design allows the stone to gradually shed worn or clogged material, continuously exposing a fresh cutting surface. The controlled shedding process delivers a water stone-like sharpening experience with the durability and cutting power of diamond abrasives, making it ideal for even the toughest sharpening tasks. Learn More$215.00 -
Naniwa Fine Rust Eraser
Designed to remove rust from carbon steel knives and tools. Knife Merchant Tip: Rust erasers are generally used dry, but for heavily rusted knives, adding a couple drops of tsubaki or mineral oil speeds up your work and creates a smoother finish Learn More -
Naniwa Sharpening Stone Holder
The Naniwa Stone Holder secures your stone while sharpening or flattening. It has good traction with the rubber mounts and sufficient weight to keep from moving around. Holds stones from 5.5 to 9 inches in length.
This is good quality stainless steel that won't rust out on you. We tested one leaving it in the water overnight and pulling it out in the daytime as we used it. Other models rusted on us within days. The Naniwa never rusted after two months, and the screw downs still move smoothly. Now, these shouldn't be left in the water and we're not suggesting that. But if it gets accidentally left in the soak tank, it's not going to be a problem. Learn More$39.95 -
Naniwa Cleaning/Dressing Stone
This small hand-held stone is used for cleaning metal fragments, creating slurry and flattening small flaws. Learn More -
Naniwa Large 24 Grit Flattening Stone
Dimensions: 11.8 in x 5.9 in x 0.8 in 24 grit Coarse carbide stone Promotes maximum cutting for all grit sizes of whetstones. Produces extremely flat results on all water stones, ceramic or traditional. Flattener and stone should be wet before use. This large flattening stone comes with rubber feet and is designed to be laid flat in a sink bottom while you hold the stone and run it across the flattener. Extra coarse for fast cutting. We use these because of the high volume of hand sharpening. This cuts quickly, but can leave fine grooves in the higher grit stones, which should be smoothed with your dressing stone. For persons doing a more normal volume of sharpening, the large 220 grit provides the benefit of truer flat without the grooving, it just takes longer. (Most flattening stones are around 220 grit) Learn More$65.00 -
Naniwa 220 grit Pink Alumina Flattening Stone
A flattening stone, designed to restore the flat surface of sharpening stones. Over time, sharpening stones develop low spots from repeated use—this tool helps grind them back to a perfectly even surface for optimal sharpening performance. Learn More$35.95 -
Naniwa Regular 220 Flattening Stone
Promotes maximum cutting for all grit sizes of whetstones. Learn More$24.95
