---
product_id: 7202586
title: "DMT D8X Diamond Dia-Sharp Bench Stone, Knife Sharpener - Extra Coarse (220) Flat Sharpening, Made in the USA 8\" x 3\" x 0.38\""
brand: "dmt (diamond machining technology)"
price: "R1863"
currency: ZAR
in_stock: true
reviews_count: 7
category: "Dmt (Diamond Machining Technology)"
url: https://www.desertcart.co.za/products/7202586-dmt-d8x-diamond-dia-sharp-bench-stone-knife-sharpener-extra
store_origin: ZA
region: South Africa
---

# Sharpen knives faster than conventional stones Extra-coarse 60 micron diamond grit Durable non-skid rubber base for stability DMT D8X Diamond Dia-Sharp Bench Stone, Knife Sharpener - Extra Coarse (220) Flat Sharpening, Made in the USA 8" x 3" x 0.38"

**Brand:** dmt (diamond machining technology)
**Price:** R1863
**Availability:** ✅ In Stock

## Summary

> 💎 Shape your edge, sharpen your game — be the pro everyone envies!

## Quick Answers

- **What is this?** DMT D8X Diamond Dia-Sharp Bench Stone, Knife Sharpener - Extra Coarse (220) Flat Sharpening, Made in the USA 8" x 3" x 0.38" by dmt (diamond machining technology)
- **How much does it cost?** R1863 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/7202586-dmt-d8x-diamond-dia-sharp-bench-stone-knife-sharpener-extra)

## Best For

- dmt (diamond machining technology) enthusiasts

## Why This Product

- Trusted dmt (diamond machining technology) brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Made in the USA with rugged construction and non-slip feet for years of reliable use.
- • **Mess-Free Precision:** Sharpen dry or with water—no oils needed, keeping your workspace clean and efficient.
- • **Pro-Grade Performance:** Trusted by chefs, woodworkers, and DIY pros for consistent, razor-sharp edges every time.
- • **Rapid Edge Restoration:** Extra-coarse diamond surface removes material quickly to fix damaged blades in minutes.
- • **Versatile Sharpening Power:** Perfect for everything from large kitchen knives to fine-pointed tools and scissors.

## Overview

The Dia-Sharp Benchstone Diamond Extra Coarse Grit is an 8-inch sharpening stone featuring a 60 micron (220 grit) continuous diamond surface designed for fast, efficient edge repair on a wide range of blades. Made in the USA with durable materials and non-skid feet, it requires no oils and delivers professional-grade sharpening for knives, scissors, and tools, making it an essential upgrade for serious sharpeners and professionals alike.

## Description

Product Description Introducing the DMT diamond sharpening stone, a precisely engineered tool designed for reliable and consistent sharpening. This 8-inch knife sharpener features an extra-coarse diamond surface (60 micron / 220) that quickly restores edges on a variety of blades, from pocket knife to kitchen knife sharpener. This versatile sharpening stone accommodates both long and short knives, making it an essential addition to any toolkit. The diamond sharpening stone is easy to use; simply sharpen dry or with water—no messy oils are needed. Designed with non-skid rubber feet, it provides stability during sharpening while the grit is clearly marked for your convenience. Ideal for maintaining everything from delicate blades to robust pocket knife and scissor sharpener requirements, the DMT diamond sharpener is built to deliver years of dependable performance. Trusted by professionals and made in the USA, this diamond stone enhances your sharpening experience, ensuring that you achieve a keen edge every time. Experience the quality and versatility that comes with a DMT sharpening stone, perfect for woodworkers, chefs, and DIY enthusiasts alike. From the Manufacturer Guaranteed not to hollow or groove, DMT's precisely engineered Dia-Sharp Bench Stone with continuous diamond surface assures consistent, even sharpening every time. The 8-inch length is great for both long and short knives providing cutting edge performance for a quick, keen edge on small contact areas and pointed tools. Extra-Coarse diamond (60 micron / 220) when significant removal of material is needed for damaged edges. Includes non-skid rubber feet. Diamond grade clearly marked on side of stone. Sharpening with diamonds is fast and easy. No messy oils needed; sharpen dry or with water. Durable construction will provide years of consistent performance and reliable service For proper tool maintenance, woodworkers, chefs and other professionals rely on the superior quality and versatility of DMT products. Made in USA.

Review: An excellent stone/plate for shaping a blade - Sharpening has three steps... 1. Getting the right shape/angle on the blade, 2. Sharpening to a very fine edge, 3. Honing from very sharp to extremely sharp. This extra coarse stone is great for shaping the blade. For example, I have a kitchen knife that was messed up by a grinder - the middle didn't touch the cutting board. In just a few minutes this extra coarse stone straightened the blade and got a good bevel along the length. It still needed to be sharpened with the DMT Coarse and Fine, but with the cutting edge of the blade straight and the bevel good, sharpening was quick and easy. Example 2. I have a 1 inch woodworking chisel that I had messed up on a grinder (bad angle). I had spent a huge amount of time (over an hour) with a coarse DMT stone getting it partially fixed - from a crooked 30 degrees to 28 degrees. Now that I have the extra coarse, I got it to the desired 25 degree bevel in minutes rather than hours. Yes, it took quite a while, but nowhere near as long as I had already spent doing the first part of the job with the coarse rather than extra coarse stone. Some of the other reviews said the plate was not flat. When it arrived I immediately compared it with my three other DMT diamond plates. The plate was flat (or I would have returned it). As I first used it, I could hear a slightly different sound the first time over each area of the stone. No surprise, it had to be broken in, so I made sure I covered the whole area. A couple small spots were still rough after the first pass, but were perfect after I ran the chisel I was sharpening over that spot 3 or 4 times. No big deal. Overall I highly recommend the DMT extra coarse for shaping a blade (kitchen or woodworking). Much less likely to mess it up than on a grinder (or in my case, I was able to fix the blade after messing it up on a grinder) The DMT regular coarse is excellent for the first sharpening - removing the scratches that naturally come from using an extra coarse stone. I originally got this coarse stone to flatten my waterstones - it does a good job of that, but is useful beyond just the waterstones, when I have to do serious sharpening work on a neglected blade. The DMT fine (there is no medium) does a great job sharpening kitchen knives (at least razor sharp), and taking my chisels etc to the next level. If I am just touching up a sharpening job, this is where I start. Kitchen knives rarely go beyond this level. The DMT micro fine was a disappointment for my chisels and planes. Instead I go to waterstones - 4000 grit then 8000 grit. Those give an almost mirror finish to the chisels. I called it a mirror finish until I got a 13,000 grit waterstone. Now that is my standard of sharp, for both the front and back of my blades.
Review: Game changer! - This stone has truly elevated my sharpening game. About two years ago, when I first began learning to sharpen, I did my research, and the advice I kept seeing was, "you only need a 1K grit stone." So, I went with a Chosera 800, which is reputed to be closer to 1K. The issue is, when you’re just starting out, you’ll likely struggle with holding a steady angle and may end up mangling your edges. With a higher grit stone, you’ll need more passes to set a proper apex or fix mistakes, which only increases your chances of errors. This was my experience, I found it nearly impossible to hold a consistent angle over 20-30 passes. The more I slipped, the more passes I needed to correct it, leading to a frustrating downward spiral. Eventually, I could achieve a passable edge, but it wouldn’t last, and I had trouble spots everywhere. I decided to take a chance on this low-grit stone to undo the damage, worried it might make things worse, but the results were surprisingly positive. Right away, I felt this stone cutting, and after just a few passes, I could see a significant improvement in my primary bevel. I followed up with the Chosera 800 and a basic chromium oxide strop, and I had created my best edge yet! Motivated, I upgraded my setup further, adding this coarse stone, a Chosera 3K, and a new strop with 3-micron diamond paste. Now, I can reliably achieve edges that pass the "paper towel test." For the first time, I have what I’d call “scary sharp” edges. I can even cut a tomato horizontally, hands-free, without it rolling on the cutting board - I never thought I'd see the day! It turns out, my issue wasn’t so much about holding a 12/15/20-degree angle, it was maintaining it over hundreds of passes. Now that my knives are properly re-apexed, touch-ups with the 800, 3K, or even just the strop are simple. Even if I don’t need to use this coarse stone often, I’m thrilled to have it in my setup, and now I’m wanting to sharpen everyone’s knives, so I’m sure it’ll get plenty of use!

## Features

- Superior Edge Maintenance: This knife sharpener uses a continuous extra-coarse diamond sharpening stone to repair damaged or very rough edges. Its micronized diamond surface sharpens faster and more efficiently than traditional methods
- Versatile Sharpening Solution: Designed for various edges, this diamond bench stone works well with large blades and fine-pointed tools. The durable, extra-coarse diamond sharpening surface transforms a damaged or rough edge to cutting condition
- Fast and Effortless Sharpening: The micronized diamond surface offers quicker precision sharpening than traditional methods. Enjoy the convenience of a kitchen and workshop sharpener that yields results without messy oils
- Durable Design for Long-lasting Performance: Proudly made in the USA, the DMT sharpening stone has non-skid rubber feet and clearly marked grit, ensuring it endures regular use while delivering exceptional performance for scissors and knives
- Perfect for Various Tools: Whether repairing a damaged blade or honing a rough edge, our DMT diamond sharpener effectively restores edges, making it a useful tool in the kitchen, the workshop or at camp
- Sharpening surface accommodates range of edges from large knives to small pointed tools
- Extra-Coarse diamond when significant removal of material is needed for damaged edges.
- Sharpens knives faster than conventional stones with DMT's monocrystalline diamond surface
- No oil is needed-sharpen dry or with water
- Durable construction will provide years of consistent performance and reliable service

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001DZOKNY |
| Best Sellers Rank | #112,178 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #186 in Sharpening Stones |
| Brand Name | DMT (Diamond Machining Technology) |
| Color | Gray |
| Customer Reviews | 4.5 4.5 out of 5 stars (462) |
| Global Trade Identification Number | 00017042007607 |
| Grit Type | Extra Coarse |
| Included Components | Dia-Sharp Extra Coarse Grit |
| Item Dimensions L x W x H | 8"L x 3"W x 0.38"H |
| Item Type Name | fixed blade,hunting knife,outdoor,camping |
| Item Weight | 2.2 Pounds |
| Manufacturer | DMT |
| Manufacturer Warranty Description | Manufacturer Warranty |
| Material Type | Micronized Monocrystalline Diamond |
| UPC | 017042007607 784497081390 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** DMT (Diamond Machining Technology)
- **Color:** Gray
- **Global Trade Identification Number:** 00017042007607
- **Grit Type:** Extra Coarse
- **Item Weight:** 2.2 Pounds
- **Manufacturer:** DMT
- **Material:** Micronized Monocrystalline Diamond
- **Number of Items:** 1
- **Product Dimensions:** 8"L x 3"W x 0.38"H
- **UPC:** 017042007607 784497081390

## Images

![DMT D8X Diamond Dia-Sharp Bench Stone, Knife Sharpener - Extra Coarse (220) Flat Sharpening, Made in the USA 8" x 3" x 0.38" - Image 1](https://m.media-amazon.com/images/I/71LEzy+d4CL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ An excellent stone/plate for shaping a blade
*by C***N on March 16, 2014*

Sharpening has three steps... 1. Getting the right shape/angle on the blade, 2. Sharpening to a very fine edge, 3. Honing from very sharp to extremely sharp. This extra coarse stone is great for shaping the blade. For example, I have a kitchen knife that was messed up by a grinder - the middle didn't touch the cutting board. In just a few minutes this extra coarse stone straightened the blade and got a good bevel along the length. It still needed to be sharpened with the DMT Coarse and Fine, but with the cutting edge of the blade straight and the bevel good, sharpening was quick and easy. Example 2. I have a 1 inch woodworking chisel that I had messed up on a grinder (bad angle). I had spent a huge amount of time (over an hour) with a coarse DMT stone getting it partially fixed - from a crooked 30 degrees to 28 degrees. Now that I have the extra coarse, I got it to the desired 25 degree bevel in minutes rather than hours. Yes, it took quite a while, but nowhere near as long as I had already spent doing the first part of the job with the coarse rather than extra coarse stone. Some of the other reviews said the plate was not flat. When it arrived I immediately compared it with my three other DMT diamond plates. The plate was flat (or I would have returned it). As I first used it, I could hear a slightly different sound the first time over each area of the stone. No surprise, it had to be broken in, so I made sure I covered the whole area. A couple small spots were still rough after the first pass, but were perfect after I ran the chisel I was sharpening over that spot 3 or 4 times. No big deal. Overall I highly recommend the DMT extra coarse for shaping a blade (kitchen or woodworking). Much less likely to mess it up than on a grinder (or in my case, I was able to fix the blade after messing it up on a grinder) The DMT regular coarse is excellent for the first sharpening - removing the scratches that naturally come from using an extra coarse stone. I originally got this coarse stone to flatten my waterstones - it does a good job of that, but is useful beyond just the waterstones, when I have to do serious sharpening work on a neglected blade. The DMT fine (there is no medium) does a great job sharpening kitchen knives (at least razor sharp), and taking my chisels etc to the next level. If I am just touching up a sharpening job, this is where I start. Kitchen knives rarely go beyond this level. The DMT micro fine was a disappointment for my chisels and planes. Instead I go to waterstones - 4000 grit then 8000 grit. Those give an almost mirror finish to the chisels. I called it a mirror finish until I got a 13,000 grit waterstone. Now that is my standard of sharp, for both the front and back of my blades.

### ⭐⭐⭐⭐⭐ Game changer!
*by S***N on November 4, 2024*

This stone has truly elevated my sharpening game. About two years ago, when I first began learning to sharpen, I did my research, and the advice I kept seeing was, "you only need a 1K grit stone." So, I went with a Chosera 800, which is reputed to be closer to 1K. The issue is, when you’re just starting out, you’ll likely struggle with holding a steady angle and may end up mangling your edges. With a higher grit stone, you’ll need more passes to set a proper apex or fix mistakes, which only increases your chances of errors. This was my experience, I found it nearly impossible to hold a consistent angle over 20-30 passes. The more I slipped, the more passes I needed to correct it, leading to a frustrating downward spiral. Eventually, I could achieve a passable edge, but it wouldn’t last, and I had trouble spots everywhere. I decided to take a chance on this low-grit stone to undo the damage, worried it might make things worse, but the results were surprisingly positive. Right away, I felt this stone cutting, and after just a few passes, I could see a significant improvement in my primary bevel. I followed up with the Chosera 800 and a basic chromium oxide strop, and I had created my best edge yet! Motivated, I upgraded my setup further, adding this coarse stone, a Chosera 3K, and a new strop with 3-micron diamond paste. Now, I can reliably achieve edges that pass the "paper towel test." For the first time, I have what I’d call “scary sharp” edges. I can even cut a tomato horizontally, hands-free, without it rolling on the cutting board - I never thought I'd see the day! It turns out, my issue wasn’t so much about holding a 12/15/20-degree angle, it was maintaining it over hundreds of passes. Now that my knives are properly re-apexed, touch-ups with the 800, 3K, or even just the strop are simple. Even if I don’t need to use this coarse stone often, I’m thrilled to have it in my setup, and now I’m wanting to sharpen everyone’s knives, so I’m sure it’ll get plenty of use!

### ⭐⭐⭐⭐⭐ Review
*by M***E on March 21, 2020*

Good solid diamond stone that took a lot of abuse flattening sets of Narex chisels and new plane blades properly so I could keep them sharp on finer stones. Cuts nice and fast and keeps doing it, also great for flattening out your finer grit water stones with.

## Frequently Bought Together

- Diamond Machine Technology (DMT), 8-in. Diamond Dia-Sharp Whetsone Bench Stone, Extra Coarse Grit Sharpener (D8X)
- DMT D8F Dia-Sharp Diamond Knife Sharpener, Fine Diamond Sharpening Stone, 8-Inch
- SHARPAL 204N Leather Strop (Genuine Cowhide) 8" x 3" Kit with 2 Oz. Polishing Compound & Angle Guide, Knife Stropping Block for Sharpening & Honing Knives, Straight Razor, Woodcarving Chisels

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-25*