---
product_id: 19031029
title: "Atoma Diamond Sharpener Coarse Grade　＃140"
brand: "tsuboman"
price: "€ 170.78"
currency: EUR
in_stock: true
reviews_count: 8
category: "Tsuboman"
url: https://www.desertcart.sk/products/19031029-atoma-diamond-sharpener-coarse-grade-140
store_origin: SK
region: Slovakia
---

# Size: 75x210x12mm Grit: 140 Made in Japan Atoma Diamond Sharpener Coarse Grade　＃140

**Brand:** tsuboman
**Price:** € 170.78
**Availability:** ✅ In Stock

## Summary

> 🔪 Sharpen Your Skills with Atoma!

## Quick Answers

- **What is this?** Atoma Diamond Sharpener Coarse Grade　＃140 by tsuboman
- **How much does it cost?** € 170.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/19031029-atoma-diamond-sharpener-coarse-grade-140)

## Best For

- tsuboman enthusiasts

## Why This Product

- Trusted tsuboman brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Build:** Aluminum base ensures stability and durability.
- • **Compact Design:** Perfectly sized for easy handling and storage.
- • **High Grit Performance:** Achieve razor-sharp edges with coarse grade efficiency.
- • **Precision Engineering:** Crafted with a replaceable plate for longevity.
- • **Japanese Craftsmanship:** Experience the quality of authentic Japanese manufacturing.

## Overview

The Atoma Diamond Sharpener Coarse Grade #140 is a precision tool designed for serious sharpeners. Measuring 75 x 210 x 12 mm, it features a high grit of 140 for effective sharpening. The replaceable plate and durable aluminum base ensure long-lasting performance, all crafted with the renowned quality of Japanese engineering.

## Description

Rough grit: Grain size #140 Suitable for use with knife with a blade. Composition: Body (replacement blade) + Aluminum base metal

Review: My favorite Extra coarse stone. - This a great quality stone, made in Japan..it cuts very fast , and is suitable for all size knives. I have even used it as a lapping stone for softer aluminum oxide stones and it still cuts steel wonderfully..this is what you use to established a bevel or repair a badly damaged bevel. This is not an everyday or every week maintaining Stone. It is very aggressive. The base is made from aluminum and is very flat. You can use a heat gun to heat it up and replace the abrasive on top once it's worn out and you can also attach another grit to the back side if you would like to have a dual sided stone, which they sell the individual cards instead of the whole Stone as well.
Review: Works fantastic for flattening water stones and bevel establishment - The best part is that as far as I can tell, the surface is extremely flat which was very important to me. This makes very quick work of flattening water stones. It's a little slower than I expected for flattening the backs of chisels, but I also haven't found anything faster, so maybe it's as good as one can realistically hope for? I also really appreciate the size of it. I have some smaller DMT plates, and while excellent, they were much harder to use for most tasks due to the smaller size. I have a number of water, oil and diamond stones and this has become one of the most important ones in my collection. Update: So I've had this plate for quite a while and it's still working well, if slower than expected. I still like it a lot and still think it's probably the best value in its class, but I'm surprised at how slowly it cuts. I'm really on the edge as to whether I think it should be 4 or 5 stars because of that. Everything else about it is excellent, but when you're buying a 140 grit stone you expect it to hog off material like crazy. I guess I would call it 4.5 stars if I could. Buy it, but if you're planning on flattening chisel or plane iron backs with it don't expect miracles; it's still going to be a workout. The main reason I edited this review at all was to add a picture I just took with a cheap usb microscope. Keep in mind this is after a year or so of use. More interesting than anything else.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BN32EXY |
| Best Sellers Rank | #63,640 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #97 in Sharpening Stones |
| Brand | tsuboman |
| Color | Gray |
| Customer Reviews | 4.8 4.8 out of 5 stars (338) |
| Date First Available | October 6, 2013 |
| Grit Type | Coarse |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.3 pounds |
| Item model number | ATM75-1.4E |
| Manufacturer | Atoma |
| Material | Diamond |
| Number of Items | 1 |
| Product Dimensions | 8.27"L x 2.95"W x 0.47"H |

## Product Details

- **Brand:** tsuboman
- **Color:** Gray
- **Grit Type:** Coarse
- **Item Weight:** 1.3 Pounds
- **Manufacturer:** Atoma
- **Material:** Diamond
- **Number of Items:** 1
- **Product Dimensions:** 8.27"L x 2.95"W x 0.47"H

## Images

![Atoma Diamond Sharpener Coarse Grade　＃140 - Image 1](https://m.media-amazon.com/images/I/81AvrsrvKCL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ My favorite Extra coarse stone.
*by P***G on April 23, 2025*

This a great quality stone, made in Japan..it cuts very fast , and is suitable for all size knives. I have even used it as a lapping stone for softer aluminum oxide stones and it still cuts steel wonderfully..this is what you use to established a bevel or repair a badly damaged bevel. This is not an everyday or every week maintaining Stone. It is very aggressive. The base is made from aluminum and is very flat. You can use a heat gun to heat it up and replace the abrasive on top once it's worn out and you can also attach another grit to the back side if you would like to have a dual sided stone, which they sell the individual cards instead of the whole Stone as well.

### ⭐⭐⭐⭐⭐ Works fantastic for flattening water stones and bevel establishment
*by T***Y on June 6, 2019*

The best part is that as far as I can tell, the surface is extremely flat which was very important to me. This makes very quick work of flattening water stones. It's a little slower than I expected for flattening the backs of chisels, but I also haven't found anything faster, so maybe it's as good as one can realistically hope for? I also really appreciate the size of it. I have some smaller DMT plates, and while excellent, they were much harder to use for most tasks due to the smaller size. I have a number of water, oil and diamond stones and this has become one of the most important ones in my collection. Update: So I've had this plate for quite a while and it's still working well, if slower than expected. I still like it a lot and still think it's probably the best value in its class, but I'm surprised at how slowly it cuts. I'm really on the edge as to whether I think it should be 4 or 5 stars because of that. Everything else about it is excellent, but when you're buying a 140 grit stone you expect it to hog off material like crazy. I guess I would call it 4.5 stars if I could. Buy it, but if you're planning on flattening chisel or plane iron backs with it don't expect miracles; it's still going to be a workout. The main reason I edited this review at all was to add a picture I just took with a cheap usb microscope. Keep in mind this is after a year or so of use. More interesting than anything else.

### ⭐⭐⭐⭐⭐ Worth it.
*by A***R on February 25, 2026*

Great for flattening.

## Frequently Bought Together

- Atoma Diamond Sharpener Coarse Grade　＃140
- Atoma Diamond Sharpener Medium - #400
- Atoma Diamond Sharpener Fine - #600

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-16*