SKU: 15876801225

Atoma Advanced Diamond Sharpening Plate #400 Grit

Sale price$81.00 Regular price$90.00
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Description

Atoma Advanced Diamond Sharpening Plate #400 GritHighlights Atoma Advanced Diamond Sharpening Plate #400 Grit Perfect for flattening dished whetstones Can replace traditional whetstones up to 500 grit Remains flat and lasts for an extended period Ideal for general whetstone flattening and high polishing grits Made by Tsuboman, a reputable Japanese manufacturer Description The Atoma Advanced Diamond Sharpening Plate #400 Grit is a versatile tool designed to flatten dished whetstones and replace

Highlights
  • Atoma Advanced Diamond Sharpening Plate #400 Grit
  • Perfect for flattening dished whetstones
  • Can replace traditional whetstones up to 500 grit
  • Remains flat and lasts for an extended period
  • Ideal for general whetstone flattening and high polishing grits
  • Made by Tsuboman, a reputable Japanese manufacturer
Description

The Atoma Advanced Diamond Sharpening Plate #400 Grit is a versatile tool designed to flatten dished whetstones and replace traditional whetstones up to 500 grit. It offers the perfect balance between coarse and fine grit, making it suitable for a wide range of sharpening tasks.

Compared to traditional whetstones, the main advantage of using an Atoma plate is its ability to remain flat over time, providing consistent performance and longevity. The Atoma #400 is a staple grit for general whetstone flattening, covering a range from low grits to high polishing grits.

To use the plate, mount your whetstone in a stone holder and rub the Atoma plate on top of the whetstone in various directions until the stone is effectively lapped.

Atoma Diamond Sharpening Plates are products of Tsuboman, a highly regarded Japanese manufacturer known for their refined diamond products. These plates are made of mono-crystalline diamonds with a cutting abrasive surface mounted on a 10mm thick stainless steel base. The base is machined to be extremely flat, ensuring the diamond plate remains flat throughout its use.

The quality and durability of Atoma plates are among the highest available on the market. They feature precision-made surfaces with high uniformity, maintaining their flatness even after prolonged sharpening sessions. The diamond plate can be replaced after a few years without purchasing another baseplate, as they are adhered using strong double-sided tape.

Atoma Diamond plates can be used dry or with water, depending on personal preference.

Specs
  • Brand: Tsuboman Atoma
  • Grit: #400 (mounted to Stainless Steel)
  • Size: 210 x 75 x 12mm
  • Weight: 750g
  • Storage pouch included
  • Professional Sharpening Stone / Diamond Plate
  • Made in Japan
Maintenance

After use, it is important to thoroughly clean the plate and remove any water if used during sharpening. Allowing the plate to dry fully will prevent rusting and maintain its longevity.


 


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: 15876801225

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Jimmy
Louisville, US
★★★★★ 5
Best Sublimation Paper
Size: 8.5"x11"
I’ve been using A-Sub paper for my sublimation projects, and it is easily one of the best. The ink dries almost instantly once printed, so I don’t have to worry about smudging the design or getting those annoying "pizza wheel" marks from the printer rollers. The paper itself feels substantial and doesn't tear or curl easily. One of the biggest wins for me is that it never jams; it feeds through perfectly every time, saving me the frustration of wasting expensive ink and paper. When I go to press my designs, the ink releases almost completely, leaving very little behind on the paper and putting all that color onto the project. The final results look super professional, with colors that are vibrant and sharp rather than looking faded or dull. It has worked perfectly for everything I’ve tried so far, and if you want a reliable paper that gives you consistent, high-quality results, this is definitely the one to get.
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Reviewed in the United States on February 25, 2026
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Nadiagne
West Palm Beach, US
★★★★★ 5
Ideal for sublimation beginners.
Size: 8.5"x11"
Asub sublimation paper has been excellent for my projects. The ink transfer is very good, the colors are vibrant and defined, and it dries quickly. It has helped me achieve clean and professional results, even as a beginner. Without a doubt, it's a reliable, high-quality paper for sublimation.
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Reviewed in the United States on February 15, 2026
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Chiller Leonard
Omaha, US
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Excellent works great and I’m bang for your buck
Size: 8.5"x14"
I love this paper. It prints, nice and clear I will be buying more.
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Fe Oyekola
Pawtucket, US
★★★★★ 5
Very good for sublimation
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Intact and very good for my sublimation
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Tasha
Massapequa, US
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Great paper and beginner friendly
Size: 8.5"x11"
I Really like using this A-Sub paper
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Reviewed in the United States on June 8, 2026

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