SKU: 95170962773

NANIWA Nagura Dressing Stone “IRODORI” – Japanese Surface Conditioning Stone for Whetstone Slurry & Sharpening Control (#220–#12000)

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Description

NANIWA Nagura Dressing Stone “IRODORI” – Japanese Surface Conditioning Stone for Whetstone Slurry & Sharpening Control (#220–#12000)The NANIWA Nagura Dressing Stone IRODORI is a Japanese surface conditioning stone designed to enhance the performance of whetstones. Unlike sharpening stones, Nagura stones are used to activate and condition the surface of a whetstone by generating fine abrasive slurry. This slurry improves sharpening efficiency, controls cutting speed, and helps achieve a smoother and more refined edge. IRODORI is a synthetic Nagura stone developed to provide

The NANIWA Nagura Dressing Stone “IRODORI” is a Japanese surface conditioning stone designed to enhance the performance of whetstones.

Unlike sharpening stones, Nagura stones are used to activate and condition the surface of a whetstone by generating fine abrasive slurry. This slurry improves sharpening efficiency, controls cutting speed, and helps achieve a smoother and more refined edge.

“IRODORI” is a synthetic Nagura stone developed to provide consistent and predictable performance, unlike natural Nagura stones which vary in grain structure. It produces a controlled slurry that can be adjusted depending on grit selection.

By using different grit levels of IRODORI, users can:

  • Accelerate sharpening speed with coarser Nagura
  • Reduce scratching and refine finish with finer Nagura
  • Clean and refresh clogged whetstone surfaces

It can also be lightly rubbed directly on blades or used to clean and maintain whetstone surfaces, making it a highly versatile sharpening accessory.

Available grit range: #220 to #12000 (multiple variations)

Brand NANIWA
Model IRODORI 彩
Item Nagura Dressing Stone
Size(of Stone) approx. 60 x 30 x 20 mm (approx. 2.4 × 1.2 × 0.8 inches)
Grit
*See images.
#220
#400
#800
#1000
#2000
#3000
#5000
#8000
#10000
#12000
How to use
  1. Nagura Stone & Whetstone should be kept wet throughout the sharpening process by sprinkling with water,which acts as a lubricant on the stone.
  2. After setting Whetstone in  unmoved condition, rub the whetstone with Nagura stone equally(moving forward and backward) and wet stone power will appear soon, but do not wash or wipe off this residue and continue sharpening.
  3. Sharpen your knife as usual.
Remarks

Depending on the item, its corner may be chipped (even when shipping from the factory), but there is no damage of its performance.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 95170962773

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Carnegie, US
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Just as described
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Just as described. Quick shipping
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Ashlee M.
Battle Creek, US
★★★★★ 3
Leaks
Color: Blue+red
Water leaks out of the button you press to change out the head so we will be sending back. Other than that it would be perfect, I’m sure it’s just a fluke thing.
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Reviewed in the United States on June 1, 2026
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Grantham, US
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This item arrived well packaged, intact with timely delivery. I am satisfied with the product
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Reviewed in the United States on December 5, 2022
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G Jain
Port Orchard, US
★★★★★ 4
works
i feel like the hole isn’t as small as before so less pressure now
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Reviewed in the United States on October 11, 2024

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