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The Naniwa 400/2,000 Grit Combination Stone is a 2 sided water stone. It is a full size aluminum oxide abrasive stone measuring 210mm x 70mm x 20mm or 2.75″ x 8.25″ x 0.75″. Each grit is 10mm  or 3/8″ thick. The 400 grit side (green) is ideal for knife maintenance, repairs, and sharpening, and the 2K grit side (yellow) produces a very nice working edge.  This stone is used with water only, and is splash and go. You can soak the stone before use, but let it air dry in between.

We recommend lapping this stone periodically with the Jende 10×4 Glass Lapping plate, or the Jende 1-x4 Diamond Lapping plate.

Weight 1.7 lbs
Dimensions 8.25 × 2.75 × 1 in

1 review for Naniwa 400/2K Combination Water Stone CS-404/420

  1. John C

    This water-stone is awesome. It’s last longer than other stones I have got.

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Shipping to USA

Most Domestic USA orders ship within 72 hours of ordering from our Colorado location via USPS. You can track your order from this Link

Shipping International/ outside of USA

Most International orders ship within 72 hours of ordering from our Taiwan location via Chunghwa Post. You can track your order from your countrys postal website or from this Link

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