---
product_id: 740815030
title: "DMT D8C 8-Inch Dia-Sharp Continuous Diamond Coarse"
brand: "dmt (diamond machining technology)"
price: "$255.24"
currency: USD
in_stock: true
reviews_count: 5
category: "Dmt"
url: https://www.desertcart.us/products/740815030-dmt-d8c-8-inch-dia-sharp-continuous-diamond-coarse
store_origin: US
region: United States of America
---

# Continuous coarse diamond surface (45 micron/325 mesh) Anti-slip rubber feet for stable sharpening Versatile for large blades & fine point tools DMT D8C 8-Inch Dia-Sharp Continuous Diamond Coarse

**Brand:** dmt (diamond machining technology)
**Price:** $255.24
**Availability:** ✅ In Stock

## Summary

> 💎 Sharpen smarter, cut sharper — join the elite edge club!

## Quick Answers

- **What is this?** DMT D8C 8-Inch Dia-Sharp Continuous Diamond Coarse by dmt (diamond machining technology)
- **How much does it cost?** $255.24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/740815030-dmt-d8c-8-inch-dia-sharp-continuous-diamond-coarse)

## 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:** Durable, USA-made construction guarantees years of consistent, expert-level performance.
- • **Rock-Solid Stability:** Four anti-slip rubber feet ensure steady, safe sharpening every time.
- • **Mess-Free Maintenance:** Sharpen dry or with water—no oil needed, keeping your workspace clean and efficient.
- • **Precision Edge Revival:** Restore dull, damaged blades faster with micro-particulate monocrystalline diamonds.
- • **Universal Sharpening Power:** Sharpen everything from hefty kitchen knives to delicate fine-point tools effortlessly.

## Overview

The DMT D8C 8-Inch Dia-Sharp Continuous Diamond Coarse sharpener features a continuous 45 micron diamond surface that quickly restores dull and damaged edges. Its versatile design accommodates a wide range of blades, from large knives to fine tools, while four anti-slip rubber feet provide stable sharpening. Oil-free use with water or dry sharpening ensures a clean, efficient process. Proudly made in the USA, this durable sharpener delivers expert-level precision and long-lasting performance for both amateurs and professionals.

## Description

Experience a precise sharpening experience with the DMT Diamond Whetstone designed as a reliable knife sharpener. This diamond bench stone features a continuous coarse diamond surface (45 micron/325 mesh) that translates the dull and damaged edges of all knives before using the fine stones. The 8" plate accommodates a wide range of edges, making it suitable for a variety of blades, from large knives to small sharp tools. Quick and easy to use, sharpen the edges with a micro-particulate monocrystalline diamond surface, eliminating the need for messy oil. Just dry or sharpen with water. DMT Diamond Knife Sharpener is made in the USA to ensure consistent quality and performance experts rely on. Anti-slip rubber base for stability This durable knife sharpener is designed to last for years to come and provides an effective sharpening for both amateurs and experts. Invest in sharpening solutions that ensure even sharpening every time and increase the performance and life of your cutting tools with a DMT Diamond Sharpening Stone

Review: Very good quality sharpening solution. I use it to sharpen plane irons and chisels and I've not seen the slightest sign of fatigue after several months of use. Guaranteed flatness, and no need for lapping... ever. To use, all that is needed is a small amount of liquid to lubricate (the manufacturer recommends water -- glass cleaner is another option with no adverse effects), then sharpen, then wipe off the slurry (the swarf is sign that it's working). The plate is quite heavy, but it helps keeping everything in place while sharpening. Let it dry and store it away. easy. I've found I can obtain results faster by applying very little pressure -- no need to force weight down into the stone to sharpen. There is a small break-in period, after which I started getting bluish halos (photo attached). It's a tell-sign cleaning is due, which can be done easily by a good scrubbing with a toothbrush and some kitchen/sink cleansing powder agent (such as calcium carbonate and sodium carbonate). The surface can also reportedly be cleaned with a high-polymer eraser. Even easier! Very responsive support from the manufacturer. Very satisfied customer! The prices for the coarse, fine, and extra-fine stones fluctuate somewhat, I'd recommend setting a watch.
Review: I own 4 DMT diamond stones. Unfortunately, everyone I have bought before this one has defects. I am happy with this stone though. My extra coarse stone is missing diamond coverage all along the edges and has a big blotch missing in one of the corners. My DMT fine stone has extremely bad grit contamination that you can not only feel, but can hear, when sharpening. So, I was happy when I finally got a DMT stone that didn't have grit contamination and has complete diamond coverage including along the edges. It is unfortunate that it took 4 stones to get a good one. To say DMT's quality control is subpar is an understatement. I kept seeing good reviews and so thought maybe I was getting lemons, just a random bad one. But no. Everyone stone except this one had significant defects. That being said.... even with the defects the stones work well enough and will last. I know it's odd to say so much negative and have a 5 star review. That is simply because this stone was exactly what it should have been. No grit contamination, no missing coverage and a great stone. It cuts fast and leaves a uniform scratch patter. It is well built and will last year's making it a great buy for $50. If you can get a DMT diamond stone without any significant defects, then you're getting a good buy. These stones will last for a very long time if you take care of them and can cut any steel type including super steels like s110v or s90v.

## Features

- 【Excellent Edge Maintenance】This knife sharpener uses continuous coarse diamond whetstone to repair dull and damaged edges. The surface of the micro-grinding diamond sharpens faster and more efficiently than traditional methods, resulting in reliable results
- 【VERSATILE SHARPENING SOLUTION】Designed for a variety of edges, this diamond bench stone is suitable for large blades and fine point tools. Durable coarse diamond sharpening surface allows you to convert the blunt edge into a cutting state
- EASY SHARPENING EXPERIENCE: DMT Diamond Sharpener has 4 anti-slip rubber feet for stability. Dry or sharpen with water to keep oil from messing. Achieve consistently sharp results with less effort and easy to maintain
- EXCELLENT CRAFTSMANSHIP - Proudly DMT Dia-Sharp Diamond Knife Sharpener offers superior quality that experts rely rely on. Its design prevents cavity and slotting and ensures cutting efficiency for years of consistent use
- COMPACT AND EASY TO USE: 8 inch knife sharpener is practical for a variety of sharpening tasks without taking up space. Designed for both amateurs and experts, this sharpener is a must have for every kitchen or workshop setup
- The sharpening surface accommodates a variety of edges, from large knives to small sharp tools
- Coarse diamonds change dull edges
- DMT monocrystalline diamond surface sharpens knives faster than traditional stones
- No oil required - can be dried or sharpened with water
- Durable construction provides years of consistent performance and reliable service

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | DMT |
| Model Number | D8C |
| Package Dimensions | 35.3 x 13.1 x 2.2 cm |
| Material | synthetic |
| Color | Black |
| Package Weight | 1.22 Kilograms |
| Batteries Required | No |
| Batteries Included | No |
| Brand Name | DMT |
| Item Weight | 1 Kilograms |

## Product Details

- **Brand:** DMT (Diamond Machining Technology)
- **Color:** Black
- **Item Weight:** 1 Kilograms
- **Material:** Micronized Monocrystalline Diamond
- **Product Dimensions:** 20.3L x 7.6W x 1H cm

## Images

![DMT D8C 8-Inch Dia-Sharp Continuous Diamond Coarse - Image 1](https://m.media-amazon.com/images/I/71hq+sjSHIL.jpg)
![DMT D8C 8-Inch Dia-Sharp Continuous Diamond Coarse - Image 2](https://m.media-amazon.com/images/I/81kQjQAk1jL.jpg)
![DMT D8C 8-Inch Dia-Sharp Continuous Diamond Coarse - Image 3](https://m.media-amazon.com/images/I/81P4Suc5MZL.jpg)
![DMT D8C 8-Inch Dia-Sharp Continuous Diamond Coarse - Image 4](https://m.media-amazon.com/images/I/81WGTkQIxVL.jpg)
![DMT D8C 8-Inch Dia-Sharp Continuous Diamond Coarse - Image 5](https://m.media-amazon.com/images/I/81HPkLWIj+L.jpg)

## Questions & Answers

**Q: What grits are the "coarse" "fine" and "extra fine" equivalent to?**
A: Allene is correct re coarse, fine and extra fine.  However, grit sizes can be confusing because of the different grading systems of the particles.  Abrasives with the same grit number can actually have different particle sizes. It all depends upon the grading system.  For example a 2,000 grit water stone would not have the same particle size as a 2000 grit wet dry paper.  There is even a difference among the paper abrasives.  The Europeans use the FEPA system.  Their abrasive sizes are preceded by a P (e.g. P220).  Americans use the CAMI system.  CAMI just has the number (e.g. 220).  Again identical numbers might have different size particles when measured in microns.  Therefore, I always try to get a reading on the particle size in microns.  A micron is 1/1,000th of a mm.  DMT also makes Extra Extra Coarse which is a 120 mesh (thats 120 little openings per sq. in.) and particle size of 120 microns.  Extra Coarse is 220 mesh and a particle size of 60 microns.  The coarse grit is 45 microns.  Fine is 25 microns.  Extra Fine is 9 microns.  There is also an Extra Extra Fine which is 8000 mesh that is a 3 micron particle size.  > 50 microns is considered grinding material.  15 - 50 microns is honing material and less than 15 microns is considered polishing material.  I hope this helps.

**Q: Many of the reviews mention using this to flatten wetstones.  Can I just use this to sharpen plane irons directly?**
A: Here's the "what for" on this item You absolutely can sharpen any metal on this stone, but you will be limited to the actual sharpness and bevel width. This stone is made with larger diamonds than most coarse stones. Because of this, as well as its length and width (and skid-free bottom), it can take nicked and out-of-true edges and get them back on track very quickly (use water only, no oils). It is a 2X coarse blade, and awesome doing what it is intended to do (this includes grinding down chisels, whittling tools, whetstones, iron, steel, etc). It could be used to put a decent edge on your blade, but it really is limited to coarse work needed to prepare it for the proper stone; I recommend soft stones from Arkansas, they make great whetstones for fine honing, but any quality soft stone is the next step. To make this long answer longer, the reason the DMT is mentioned and recommended to flatten whetstones is that, again, the large diamonds go to work quickly and grind down uneven, pocked, or dipped anomalies on the much softer soft stones which makes plumbing a straight edge on a fine blade much more effective. So, basically, you keep the DMT to grind the soft stone to level, use it to work the blade to rid it of abnormalities, and then let that rejuvenated hard and straight blade make woo with that fine Arkansas (or personal choice of) whetstone (water, spit, and oil are optional). Sorry for the long story, take care of the ones you love, thank a vet, prepare, prepare, prepare, and have a great September; especially those of you who have the privilege of experiencing the changing of the colors! Also, it's the time of year we wait for; muleys, white tail, wapiti, antelope, and turkey (plus whatever else ya'll get to hunt and stock in your territory). Prep them blades, clean and sleep with them guns, shake them cartridges to loosen up and distribute the powder, and keep field stones handy for quick edges for the cold, morning, field dressing...And thanks for the question!

**Q: is this 3 stones in one package or just one? because the picture is three stones.**
A: You only get one but they show the 3 different grits. These aren't stones but rather diamond embedded steel plates.

**Q: How flat is it? Is it flat enough to true up a waterstone? To put it another way, can it be a smaller/cheaper version of the DMT lapping plate?**
A: Its very flat I use the coarse and extra coarse to flatten water stones all the time. I would recommend them to anyone for just water stone flattening it works great but in also use it to sharpen with great results

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by T***T on January 30, 2018*

Very good quality sharpening solution. I use it to sharpen plane irons and chisels and I've not seen the slightest sign of fatigue after several months of use. Guaranteed flatness, and no need for lapping... ever. To use, all that is needed is a small amount of liquid to lubricate (the manufacturer recommends water -- glass cleaner is another option with no adverse effects), then sharpen, then wipe off the slurry (the swarf is sign that it's working). The plate is quite heavy, but it helps keeping everything in place while sharpening. Let it dry and store it away. easy. I've found I can obtain results faster by applying very little pressure -- no need to force weight down into the stone to sharpen. There is a small break-in period, after which I started getting bluish halos (photo attached). It's a tell-sign cleaning is due, which can be done easily by a good scrubbing with a toothbrush and some kitchen/sink cleansing powder agent (such as calcium carbonate and sodium carbonate). The surface can also reportedly be cleaned with a high-polymer eraser. Even easier! Very responsive support from the manufacturer. Very satisfied customer! The prices for the coarse, fine, and extra-fine stones fluctuate somewhat, I'd recommend setting a watch.

### ⭐⭐⭐⭐⭐ Review
*by K***Y on March 6, 2025*

I own 4 DMT diamond stones. Unfortunately, everyone I have bought before this one has defects. I am happy with this stone though. My extra coarse stone is missing diamond coverage all along the edges and has a big blotch missing in one of the corners. My DMT fine stone has extremely bad grit contamination that you can not only feel, but can hear, when sharpening. So, I was happy when I finally got a DMT stone that didn't have grit contamination and has complete diamond coverage including along the edges. It is unfortunate that it took 4 stones to get a good one. To say DMT's quality control is subpar is an understatement. I kept seeing good reviews and so thought maybe I was getting lemons, just a random bad one. But no. Everyone stone except this one had significant defects. That being said.... even with the defects the stones work well enough and will last. I know it's odd to say so much negative and have a 5 star review. That is simply because this stone was exactly what it should have been. No grit contamination, no missing coverage and a great stone. It cuts fast and leaves a uniform scratch patter. It is well built and will last year's making it a great buy for $50. If you can get a DMT diamond stone without any significant defects, then you're getting a good buy. These stones will last for a very long time if you take care of them and can cut any steel type including super steels like s110v or s90v.

### ⭐⭐⭐⭐⭐ Review
*by A***I on September 30, 2025*

Pessoalmente acho muito agressiva para usar diretamente nas lâminas, pois remove muito material. Estou usando para retificar minhas whetstones da King e da Suehiro e para isso essa pedra diamantada é fantástica. Nunca consegui retificar minhas pedras usando lixas e outros métodos mais baratos então resolvi arriscar. As pedras diamantadas da DMT não são baratas mas valem a pena. Retificou minha King velha de guerra, que acumulava uma barriga considerável depois de mais de 10 anos de uso. Como foi necessário desbastar muito da pedra demorou um pouco (quase 3 horas de trabalho). Mas ao final o trabalho ficou ótimo e a pedra diamantada ainda estava como nova. Recomendo.

## Frequently Bought Together

- DMT D8C Dia-Sharp Diamond Knife Sharpener, Coarse Diamond Sharpening Stone, 8-Inch
- Diamond Machine Technology (DMT), 8-in. Diamond Dia-Sharp Whetsone Bench Stone, Extra Coarse Grit Sharpener (D8X)
- SHARPAL 205H Double-sided Leather Strop (Genuine Cowhide) 13.2" x 2.4" Kit with 2 Oz. Polishing Compound & Angle Guide, Knife Stropping Block for Sharpening & Honing Knives tools, Woodcarving Chisels

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-15*