---
product_id: 6003245
title: "DMT (Diamond Machining Technology) D3C 3-inch Dia-Sharp Sharpener, Coarse, Credit Card Sized, One Size, (D3F)"
brand: "dmt (diamond machining technology)"
price: "Rp798409"
currency: IDR
in_stock: true
reviews_count: 9
category: "Dmt (Diamond Machining Technology)"
url: https://www.desertcart.id/products/6003245-dmt-diamond-machining-technology-d3c-3-inch-dia-sharp-sharpener
store_origin: ID
region: Indonesia
---

# Micronized monocrystalline diamond surface (25 micron / 600 mesh) Credit card sized for ultimate portability Ultra-lightweight at just 0.8 oz DMT (Diamond Machining Technology) D3C 3-inch Dia-Sharp Sharpener, Coarse, Credit Card Sized, One Size, (D3F)

**Brand:** dmt (diamond machining technology)
**Price:** Rp798409
**Availability:** ✅ In Stock

## Summary

> 💎 Sharpen smarter, not bulkier — your edge’s new best friend!

## Quick Answers

- **What is this?** DMT (Diamond Machining Technology) D3C 3-inch Dia-Sharp Sharpener, Coarse, Credit Card Sized, One Size, (D3F) by dmt (diamond machining technology)
- **How much does it cost?** Rp798409 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/6003245-dmt-diamond-machining-technology-d3c-3-inch-dia-sharp-sharpener)

## 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 ensures years of reliable, consistent performance
- • **Versatile Pro Tool:** Trusted by chefs, woodworkers, and outdoor pros for fine honing anywhere
- • **No-Mess Maintenance:** Sharpen dry or with water—no oils needed, no hassle
- • **Diamond-Powered Edge:** Micronized diamond surface sharpens faster and cleaner than traditional stones
- • **Pocket-Ready Precision:** Fits seamlessly in your wallet or pocket for sharpening on-the-go

## Overview

The DMT D3C Dia-Sharp Sharpener is a credit card-sized, fine-grit (25 micron / 600 mesh) diamond sharpening stone designed for ultra-portability and fast, efficient edge honing. Weighing only 0.8 ounces and made in the USA, it requires no oils and works dry or wet, making it the go-to tool for professionals and enthusiasts who demand precision and convenience in a compact form.

## Description

Product Description Sharpen with compact convenience, consistent performance. and reliable service with Diamond Machining Technology’s lightweight sharpeners, great for any home, camper, toolbox, shed, and more. Sharpen in a fraction of the time required by conventional stones, without messy oils: simply sharpen dry or with water. For proper tool maintenance, woodworkers, chefs, and other professionals rely on the superior quality and versatility of DMT products. From the Manufacturer Take your sharpening anywhere with the ready-to-go Dia-Sharp credit card sized diamond sharpener. Fits easily in pocket or wallet. Comes in convenient vinyl grit color-coded carry case. Fine diamond (25 micron / 600 mesh) for a razor sharp edge. Size: 3 1/4-Inch by 2-Inch by .05" 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: 8 years later - This sharpener is great, I've kept it in my wallet since I've got it. It can sharpen up even the dullest blade to hair whittling sharp, provided the bevel hasn't been dented/chipped out--and even then with a little persistence it will actually get the job done. The edge is produces is a nice mix between toothy and polished, making push-cutting easy but also still allowing easy slicing of rope and other fibrous material. Just be sure to use light pressure; the diamonds don't respond well to heavy-handedness. Plus if you press too hard, you will rip them out of the nickle substrate they're bound to, making the hone useless. Don't confuse this for the "break-in" that occurs after several uses; the grit will start to feel smoother, but rest assured it will still do the job--in fact you will get better results once this break-in is complete. The only problem I had with it was that there were some little raised edges, I suppose from where they stamped the card out of a metal sheet. I simply rubbed these off on a flattening stone. Not a very big deal but it will cause a little bit of problems with the sharpening process if not taken care of, but this is so common on most other sharpening media I'm not going to hold it against them. Update: It's now 8 years later, and this little hone has really proved its worth. It's helped for so much more than just sharpening knives. I've chucked-up pins from air rifles into drills and ground down the knurling, and barely burnt out the abrasives on the card. The only downside I can give to this hone is that over time, carrying in your wallet, it WILL go out-of-flat since it's just nickel. Mine now has a bit of a dish in it, but it's not so bad that I can't still hone things on it. Despite all of that, when it comes to things that aren't high-speed ( like chucking up push pins) when you hone normally, this stuff really keeps the diamond abrasives. I've used this from everything from sharpening a knife, honing down knurling on pellet rifle's push pins, to removing gouges out of the locking nuts on double-locking Floyd Rose Bridges. It is an amazing little investment for the price, and I've been able to sharpen very larges items with it over the years too. Machete, kitchen knives, pocket knives, etc. It really only takes a skilled hand and patience to accomplish the edges you need, and as far as having a fine-grained abrasive for other uses, it has stood up to a lot of what I could qualify as abuse. Eight years later, and it's still going strong.
Review: Excellet little sharpener! - I bought the Fine & Extra-fine versions of this to compliment an ADD Tactical wallet strop loaded with polish compound. All result in a very useful & portable setup that's capable of returning an edge to working conditions while camping or hunting. Do not mistake these for a primary sharpening device as that is not their intended purpose. A couple of pet peeves I have are misleading 'product dimensions' & useless reviews on desertcart. In the text of the 'Description' for this item are the actual dimensions for this item: 3-1/4" X 2" X 0.05" (just under 1/16") However, under 'Features & details' it says that the Product Dimensions are 8.5 X 3.5 X 3.5 inches. This is the size of the blister pack (though it's certainly not 3.5 inches 'thick'). This might mislead some to conclude that what they're getting is something bigger. My second pet peeve is the useless negative reviews like 'received wrong item'; 'too small to be much use'; & (my personal favorite) 'didn't work'. How is a packaging error by desertcart any reflection on the product & why do they allow the 'review' to be posted? If you didn't like the size, just return it. If it didn't work, guess what? You're using it wrong! These sharpeners work well but the size & your ability limit how refined an edge you can get. Hope this review helps. Cheers!

## Features

- Credit Card Shaped and Sized: Diamond wet stone sharpening kit is designed to easily fit into any pocket or wallet; each lightweight diamond stone also comes in a convenient color-coded vinyl carry case
- Grit: Fine diamond stone (25 micron / 600 mesh) to hone edges
- Lightweight and Portable: Each diamond stone sharpener is conveniently sized at 9.5 x 5 x 3.25 inches and weighs only 0.8 oz, meaning you can take your sharpening anywhere
- Fast & Easy: A micronized monocrystalline diamond surface sharpens edges faster and easier than conventional sharpening stones; no oils required, simply sharpen dry or with water
- Made In The USA: Preferred by professionals for their superior quality and versatility, our durable diamond sharpening stones are built to provide years of consistent performance and reliable service

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0001WP1J2 |
| Assembly required | No |
| Batteries required | No |
| Best Sellers Rank | #257,017 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #524 in Sharpening Stones |
| Brand | DMT (Diamond Machining Technology) |
| Care instructions | Hand Wash |
| Color | Gray |
| Customer Reviews | 4.3 4.3 out of 5 stars (412) |
| Department | Unisex-Adult |
| Global Trade Identification Number | 00017042007478, 00017042007522 |
| Grit Type | Fine |
| Import | Made in the USA or Imported |
| Included Components | Dia-Sharp Fine Grit |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.8 ounces |
| Item model number | D3F |
| Manufacturer | DMT |
| Material | Micronized Monocrystalline Diamond |
| Number of Items | 1 |
| Number of pieces | 1 |
| Product Dimensions | 9.5"L x 5"W x 3.25"H |
| UPC | 097914374341 017042007478 017042007522 |
| Warranty Description | Manufacturer Warranty |

## Product Details

- **Brand:** DMT (Diamond Machining Technology)
- **Color:** Gray
- **Global Trade Identification Number:** 00017042007478, 00017042007522
- **Grit Type:** Fine
- **Item Weight:** 0.8 Ounces
- **Manufacturer:** DMT
- **Material:** Micronized Monocrystalline Diamond
- **Number of Items:** 1
- **Product Dimensions:** 9.5"L x 5"W x 3.25"H
- **UPC:** 097914374341 017042007478 017042007522

## Images

![DMT (Diamond Machining Technology) D3C 3-inch Dia-Sharp Sharpener, Coarse, Credit Card Sized, One Size, (D3F) - Image 1](https://m.media-amazon.com/images/I/81tqYDJoMGL.jpg)
![DMT (Diamond Machining Technology) D3C 3-inch Dia-Sharp Sharpener, Coarse, Credit Card Sized, One Size, (D3F) - Image 2](https://m.media-amazon.com/images/I/910QKG6ChSL.jpg)
![DMT (Diamond Machining Technology) D3C 3-inch Dia-Sharp Sharpener, Coarse, Credit Card Sized, One Size, (D3F) - Image 3](https://m.media-amazon.com/images/I/912gtLlkyhL.jpg)
![DMT (Diamond Machining Technology) D3C 3-inch Dia-Sharp Sharpener, Coarse, Credit Card Sized, One Size, (D3F) - Image 4](https://m.media-amazon.com/images/I/91hl2A5shZL.jpg)
![DMT (Diamond Machining Technology) D3C 3-inch Dia-Sharp Sharpener, Coarse, Credit Card Sized, One Size, (D3F) - Image 5](https://m.media-amazon.com/images/I/717phYFHwuL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 8 years later
*by J***R on February 1, 2013*

This sharpener is great, I've kept it in my wallet since I've got it. It can sharpen up even the dullest blade to hair whittling sharp, provided the bevel hasn't been dented/chipped out--and even then with a little persistence it will actually get the job done. The edge is produces is a nice mix between toothy and polished, making push-cutting easy but also still allowing easy slicing of rope and other fibrous material. Just be sure to use light pressure; the diamonds don't respond well to heavy-handedness. Plus if you press too hard, you will rip them out of the nickle substrate they're bound to, making the hone useless. Don't confuse this for the "break-in" that occurs after several uses; the grit will start to feel smoother, but rest assured it will still do the job--in fact you will get better results once this break-in is complete. The only problem I had with it was that there were some little raised edges, I suppose from where they stamped the card out of a metal sheet. I simply rubbed these off on a flattening stone. Not a very big deal but it will cause a little bit of problems with the sharpening process if not taken care of, but this is so common on most other sharpening media I'm not going to hold it against them. Update: It's now 8 years later, and this little hone has really proved its worth. It's helped for so much more than just sharpening knives. I've chucked-up pins from air rifles into drills and ground down the knurling, and barely burnt out the abrasives on the card. The only downside I can give to this hone is that over time, carrying in your wallet, it WILL go out-of-flat since it's just nickel. Mine now has a bit of a dish in it, but it's not so bad that I can't still hone things on it. Despite all of that, when it comes to things that aren't high-speed ( like chucking up push pins) when you hone normally, this stuff really keeps the diamond abrasives. I've used this from everything from sharpening a knife, honing down knurling on pellet rifle's push pins, to removing gouges out of the locking nuts on double-locking Floyd Rose Bridges. It is an amazing little investment for the price, and I've been able to sharpen very larges items with it over the years too. Machete, kitchen knives, pocket knives, etc. It really only takes a skilled hand and patience to accomplish the edges you need, and as far as having a fine-grained abrasive for other uses, it has stood up to a lot of what I could qualify as abuse. Eight years later, and it's still going strong.

### ⭐⭐⭐⭐⭐ Excellet little sharpener!
*by O***C on April 2, 2016*

I bought the Fine & Extra-fine versions of this to compliment an ADD Tactical wallet strop loaded with polish compound. All result in a very useful & portable setup that's capable of returning an edge to working conditions while camping or hunting. Do not mistake these for a primary sharpening device as that is not their intended purpose. A couple of pet peeves I have are misleading 'product dimensions' & useless reviews on Amazon. In the text of the 'Description' for this item are the actual dimensions for this item: 3-1/4" X 2" X 0.05" (just under 1/16") However, under 'Features & details' it says that the Product Dimensions are 8.5 X 3.5 X 3.5 inches. This is the size of the blister pack (though it's certainly not 3.5 inches 'thick'). This might mislead some to conclude that what they're getting is something bigger. My second pet peeve is the useless negative reviews like 'received wrong item'; 'too small to be much use'; & (my personal favorite) 'didn't work'. How is a packaging error by Amazon any reflection on the product & why do they allow the 'review' to be posted? If you didn't like the size, just return it. If it didn't work, guess what? You're using it wrong! These sharpeners work well but the size & your ability limit how refined an edge you can get. Hope this review helps. Cheers!

### ⭐⭐⭐⭐⭐ Great tool for the right use
*by M***N on August 17, 2019*

These diamond cards work very well so long as you know what to expect. First, the surface will lose the very rough feel almost immediately, but it retains cutting action much, much longer. Trust me, even when it feels smooth to the touch, it does the job. It's counter-intuitive if you don't know what to expect. Second, these are meant to be used with a lot of light strokes, not the full-body-weight use of a non-diamond stone clamped in a vise. I've demolished one in 30 minutes of sharpening gravers because I pushed so hard that I damaged the lightweight steel substrate. Lighten up and they last nearly forever.

## Frequently Bought Together

- DMT (Diamond Machining Technology) D3C 3-inch Dia-Sharp Sharpener, Coarse, Credit Card Sized, One Size, (D3F)
- Trend Diamond Abrasive Lapping Fluid, 3.4 fl oz, Blue, Professional Grade Sharpening Fluid for Optimum Performance, DWS/LF/100

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.id/products/6003245-dmt-diamond-machining-technology-d3c-3-inch-dia-sharp-sharpener](https://www.desertcart.id/products/6003245-dmt-diamond-machining-technology-d3c-3-inch-dia-sharp-sharpener)

---

*Product available on Desertcart Indonesia*
*Store origin: ID*
*Last updated: 2026-03-16*