Coarse blue #220 grit sharpening stone block by Niwaki on white background

Sharpening Stone #220

$26.00
Niwaki

Niwaki's coarse #220-grit Sharpening Stone creates a foundation for restoring neglected or severely dull blades.

Designed primarily for secateurs, this stone also works to reshape the edges of shears, clippers, and other tools. Its concave edge follows the curve of the blade, while its compact size makes it easy to reach tight spots and corners.

Coarse grit reshapes worn edges and helps remove nicks and dings, creating the foundation for finer sharpening stages. Follow with a fine and super-fine grit to refine and polish the edge. See usage instructions below—the two golden rules are to soak thoroughly before each use, and, above all, not to drop it.

For all the sharpening essentials, check out the Sharpening Tools Bundle: a four-piece set complete with every thing you need for a razor-sharp edge.

    Specifications
    • 5.3" x 0.8" x 1.1"
    • coarse #220 grit
    • made in Japan
    Use

    This stone should be used for very dull or damaged blades, before a fine #1000 grit and super-fine #3000 grit. If the blade edge is not severely dulled, we recommend starting at a #1000 grit for general maintenance. 

    • Soak stone in water for a 3-4 minutes before use, and periodically sprinkle water to keep wet during use. 
    • Gently move stone back and forth along the whole length of the blade, using as much of the stone as possible—not just the top.

      Secateurs:  Use the concave edge of the stone, moving from the pivot towards the tip of the blade, following the curve as you go.

      Straight-bladed shears:  Use the flat side of the stone.
    • Next, turn the tool over, and use the flat side of the stone to smooth the burr off the inside of the blade, going slightly over, creating a very fine bevel.
    • Use the convex edge of the stone to clean off the curved edge of the bypass.
    • Finally, clean and dry the blades, and wipe with Camellia Oil.
    Further Reading

    The word niwaki in Japanese means "garden tree", and it refers to the art of training trees through care, attention, and detail. Niwaki brings the very best in Japanese design and craftsmanship, inspiring gardeners, chefs, and craftsmen to do the stuff they love, even better. 

    Explore our Niwaki collection for thoughtfully crafted Japanese tools designed for the home, garden, and daily life.
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