---
product_id: 256583920
title: "Atoma Science Purchase Diamond Sharpener (M)"
brand: "atoma"
price: "€ 145.36"
currency: EUR
in_stock: true
reviews_count: 5
category: "Atoma"
url: https://www.desertcart.pt/products/256583920-atoma-science-purchase-diamond-sharpener-m
store_origin: PT
region: Portugal
---

# Authentic diamond grit #400 Precision flatness 8" x 2.77" Lightweight 600g aluminum base Atoma Science Purchase Diamond Sharpener (M)

**Brand:** atoma
**Price:** € 145.36
**Availability:** ✅ In Stock

## Summary

> 💎 Sharpen smarter, stay sharper — the diamond standard for pros.

## Quick Answers

- **What is this?** Atoma Science Purchase Diamond Sharpener (M) by atoma
- **How much does it cost?** € 145.36 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/256583920-atoma-science-purchase-diamond-sharpener-m)

## Best For

- atoma enthusiasts

## Why This Product

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

## Key Features

- • **Lightweight & Portable:** At just 600g, this sleek aluminum-backed plate is easy to handle and store without sacrificing stability.
- • **Value Meets Performance:** Priced competitively at $69, it delivers premium Japanese craftsmanship without the premium markup—don’t miss out.
- • **Diamond-Grade Durability:** Engineered with premium #400 medium rough diamond grit for unmatched sharpening speed and longevity.
- • **Versatile Sharpening Power:** Ideal for flattening whetstones and prepping chisels—your go-to tool for professional-grade edge maintenance.
- • **Precision Flatness Guaranteed:** Near-perfectly flat 8" x 2.77" surface ensures your whetstones stay razor-sharp and true every time.

## Overview

The Atoma Science Purchase Diamond Sharpener (M) is a high-quality Japanese diamond sharpening plate featuring medium rough #400 grit on a durable, lightweight aluminum base. Measuring 8" x 2.77" x 0.32", it maintains near-perfect flatness to keep whetstones and chisels in optimal condition. Praised for its precision and longevity, this sharpener offers professional-grade performance at a competitive price, making it an essential tool for serious craftsmen and enthusiasts alike.

## Description

Grit: Medium Rough #400;Type: Diamond;Size: 8" x 2.77" x .32" H

Review: This I think is a great sharpening plate, I used to remove the initial covering on a chisels flat side and to get the plate primed for use - I really like it, expensive but worth it
Review: I'm not sure why this product is listed the way it is with "Science Purchase" in the description. If you consider diamonds science then sure but it is confusing to say the least. This product is in fact a real/authentic Atoma Diamond plate from Japan. Truing stones overtime will eventually lose their flatness but not with a diamond plate. My aluminum block came with a few light surface scuffs/scratches but that's okay. The diamond pad is adhered tightly to the block and will take some prying to remove it when it needs to be replaced in the future. Since this thing is near perfectly flat, this will will flatten/level out any whetstones in no time. It can even be used for knife repair, but I wouldn't recommend that as it'll prematurely wear out the diamonds if you do use it for metal on metal repairs. The 400grit level is perfect as its not as rough as the 140grit but still faster then then 600grit diamond plate. If you're looking for the ultimate way to keep your whetstones flat, then this diamond plate is the way to go. The pricing of $69 is also a steal compared to some other online retailers selling it for $100+ so this is an absolute bargain.

## Features

- Grit: Medium Rough #400
- Type: Diamond
- Size: 8" x 2.77" x .32"

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0031KNR2O |
| Best Sellers Rank | #74,101 in Office Products ( See Top 100 in Office Products ) #470 in Pencil Sharpeners |
| Brand | Atoma |
| Color | Gray |
| Customer Reviews | 4.8 4.8 out of 5 stars (621) |
| Date First Available | 14 May 2013 |
| Item Weight | 600 g |
| Material | Diamond |
| Model Number | 78DIASHARP |
| Product Dimensions | 20.32 x 7.04 x 0.81 cm; 600 g |

## Product Details

- **Brand:** Atoma
- **Colour:** Gray
- **Item weight:** 0.6 Kilograms
- **Material:** Diamond
- **Product dimensions:** 21L x 7.5W x 1.2H centimeters

## Images

![Atoma Science Purchase Diamond Sharpener (M) - Image 1](https://m.media-amazon.com/images/I/61qBLDNtxbL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***N on 5 July 2024*

This I think is a great sharpening plate, I used to remove the initial covering on a chisels flat side and to get the plate primed for use - I really like it, expensive but worth it

### ⭐⭐⭐⭐⭐ Review
*by A***N on 1 September 2023*

I'm not sure why this product is listed the way it is with "Science Purchase" in the description. If you consider diamonds science then sure but it is confusing to say the least. This product is in fact a real/authentic Atoma Diamond plate from Japan. Truing stones overtime will eventually lose their flatness but not with a diamond plate. My aluminum block came with a few light surface scuffs/scratches but that's okay. The diamond pad is adhered tightly to the block and will take some prying to remove it when it needs to be replaced in the future. Since this thing is near perfectly flat, this will will flatten/level out any whetstones in no time. It can even be used for knife repair, but I wouldn't recommend that as it'll prematurely wear out the diamonds if you do use it for metal on metal repairs. The 400grit level is perfect as its not as rough as the 140grit but still faster then then 600grit diamond plate. If you're looking for the ultimate way to keep your whetstones flat, then this diamond plate is the way to go. The pricing of $69 is also a steal compared to some other online retailers selling it for $100+ so this is an absolute bargain.

### ⭐⭐⭐⭐⭐ Review
*by A***N on 11 December 2025*

If you are serious about knife sharpening this is a must. Flattens stones well and quickly (if you do it regularly) and is a joy to set new bevels, very quick and efficient. Not as smooth as a regular whetstone but this is only really used to prep, repair and maintain the stone or just set up the bevel at the angle you wish to sharpen by removing old material quickly. Itll even grind the print off your fingers if u rub em enough, ask me how i know. Its kind of expensive but it lasts long enough to be negligible in the long term. Would buy again (i did).

## Frequently Bought Together

- Atoma Diamond Sharpener Medium - #400
- Atoma Diamond Plate Knife Sharpening Flattening Whetstone #1200
- Atoma Diamond Sharpener Fine - #600

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-04-23*