---
product_id: 2119029
title: "Diamond Machining Technology (DMT) W7EFC Whetstone Mini Diamond Stone - Coarse / Fine / Extra-Fine - Set of 3"
brand: "diamond machine technology (dmt)"
price: "฿4086"
currency: THB
in_stock: true
reviews_count: 13
category: "Dmt (Diamond Machining Technology)"
url: https://www.desertcart.co.th/products/2119029-diamond-machining-technology-dmt-w7efc-whetstone-mini-diamond-stone-coarse
store_origin: TH
region: Thailand
---

# Fast, oil-free sharpening 3 precision diamond grits Compact 2.75" x 1" x 0.25" size Diamond Machining Technology (DMT) W7EFC Whetstone Mini Diamond Stone - Coarse / Fine / Extra-Fine - Set of 3

**Brand:** diamond machine technology (dmt)
**Price:** ฿4086
**Availability:** ✅ In Stock

## Summary

> 💎 Sharpen smarter, not harder — the ultimate edge upgrade on the go!

## Quick Answers

- **What is this?** Diamond Machining Technology (DMT) W7EFC Whetstone Mini Diamond Stone - Coarse / Fine / Extra-Fine - Set of 3 by diamond machine technology (dmt)
- **How much does it cost?** ฿4086 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/2119029-diamond-machining-technology-dmt-w7efc-whetstone-mini-diamond-stone-coarse)

## Best For

- diamond machine technology (dmt) enthusiasts

## Why This Product

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

## Key Features

- • **No Mess, No Fuss:** Sharpen dry or with water—no oils required for professional results
- • **Clean & Efficient:** Innovative polka-dot pattern clears metal debris for faster honing
- • **Pocket-Sized Power:** Sharpen anywhere with ultra-portable, lightweight design
- • **Triple-Grit Mastery:** Coarse, Fine & Extra-Fine diamonds for every edge need
- • **Durability Meets Precision:** Electroplated nickel bonding on steel base ensures years of consistent performance

## Overview

The DMT W7EFC Mini Diamond Stone Set features three color-coded diamond stones (Coarse 45 micron, Fine 25 micron, Extra-Fine 9 micron) designed for fast, precise sharpening and polishing. Compact and lightweight at 2.75" x 1" x 0.25", these stones use micronized monocrystalline diamonds bonded to a durable steel base with a unique recessed dot pattern that keeps the surface clean for efficient honing. Made in the USA, this set delivers professional-grade edge restoration without oils, perfect for toolkits, kitchens, and outdoor use.

## Description

Product Description The perfect portable addition to any tool kit is the Mini Diamond 70mm stone in DMT's signature polka-dot pattern. Set of 3 comes with a Coarse (45 micron / 325 mesh) option for quickly restoring neglected edge, a Fine (25 micron / 600 mesh) option for creating razor-sharp edges, and an Extra-Fine (9 micron / 1200 mesh) option for polishing and refining razor edges after sharpening with a coarser diamond. Micron-sized monocrystalline diamonds are conveniently sized at 2.75" x 1" x 0.25" and securely bonded in nickel that is electroplated to precision-ground steel. An injection-molded polycarbonate base increases the structural rigidity needed to maintain a flat sharpening surface. Our innovative recessed dot pattern is the key to the DMT difference. By providing a space into which metal produced from sharpening can be cleared, the dots keep the diamond surface clean for fast and efficient honing of all materials. From the Manufacturer A portable enhancement to any tool kit is the Mini Diamond 70mm stone in DMT's signature polka-dot pattern. Kit of 3 comes in Coarse (45 micron / 325 mesh) to quickly restore a neglected edge; Fine (25 micron / 600 mesh) for a razor sharp edge; Extra-Fine (9 micron / 1200 mesh) to polish and refine a razor edge after sharpening with a coarser diamond. Size: 2 11/16 x 15/16 x 3/16 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: Diamond's in the rough? - These diamond stones work well I use them to tune my ski edges the blue removed the burrs easly,the red puts a nice sharpness, and the green just makes the edge a bit sharper and leaves a nice shine on the edges and of course that's after using a file.i can definetly feel the difference on the hill.i will not hesitate to purchase these again.
Review: Small and handy but not for everything - DMT is a great brand and I was happy to find these for the price. To me they are a good value but IF YOU ARE NEW TO SHARPENING KEEP READING. These are small, as is accurately stated in the product description. I bought them to keep in a tool box for touching up chisels and the like. They work great for that. I also bought a full size sharpening block to keep in the kitchen for my knives. The DMT set is great and will last for years bur is best for things smaller than a pocket knife This set is a great choice for many jobs and I recommend it, but it isn't for every job. Be safe and buy kitchen tools for the kitchen and shop tools for the toolbox.

## Features

- Diamond Wet Stone Sharpening Kit: Designed to fit easily into any pocket, these lightweight diamond stones come color-coded for easy identification
- 3 Diamonds: Coarse diamond stone (45 micron / 325 mesh) restores neglected edges; Fine diamond stone (25 micron / 600 mesh) hones edges; Extra-fine diamond stone (9 micron / 1200 mesh) polishes and refines edges
- Portable: Each diamond stone sharpener is conveniently sized at 2.75 x 1 x .25 inches, meaning you can do your sharpening anywhere
- Fast & Easy: Micronized monocrystalline diamonds are securely bonded; the dots keep the diamond surface clean for fast and efficient honing of all materials; 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
- Quick edge repair anywhere
- 3 different diamond stones: extra-fine to polish and refine an edge, fine for a razor sharp edge and coarse to transform a dull edge
- 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 | B00004WFTD |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #51,286 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #90 in Sharpening Stones |
| Brand | Diamond Machine Technology (DMT) |
| Color | Whetstone |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,033) |
| Date First Available | October 6, 2004 |
| Global Trade Identification Number | 00017042001902 |
| Grit Rating | 45 |
| Grit Type | Coarse,Extra Fine,Fine |
| Included Components | Tool, Knife Sharpener |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1.87 ounces |
| Item model number | W7EFC |
| Manufacturer | DMT |
| Material | Micronized Monocrystalline Diamond |
| Measurement System | Metric |
| Number Of Pieces | 1 |
| Number of Items | 1 |
| Part Number | W7EFC |
| Product Dimensions | 10.75"L x 3.25"W x 2.25"H |
| Size | One Size |
| Special Features | Manual |
| Style | Coarse / Fine / Extra-Fine |
| UPC | 017042001902 |
| Warranty Description | Manufacturer Warranty |

## Product Details

- **Brand:** Diamond Machine Technology (DMT)
- **Color:** Whetstone
- **Global Trade Identification Number:** 00017042001902
- **Grit Type:** Coarse,Extra Fine,Fine
- **Item Weight:** 53 Grams
- **Manufacturer:** DMT
- **Material:** Micronized Monocrystalline Diamond
- **Number of Items:** 1
- **Product Dimensions:** 10.75"L x 3.25"W x 2.25"H
- **UPC:** 017042001902

## Images

![Diamond Machining Technology (DMT) W7EFC Whetstone Mini Diamond Stone - Coarse / Fine / Extra-Fine - Set of 3 - Image 1](https://m.media-amazon.com/images/I/71csufd50YL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Diamond's in the rough?
*by A***R on December 14, 2025*

These diamond stones work well I use them to tune my ski edges the blue removed the burrs easly,the red puts a nice sharpness, and the green just makes the edge a bit sharper and leaves a nice shine on the edges and of course that's after using a file.i can definetly feel the difference on the hill.i will not hesitate to purchase these again.

### ⭐⭐⭐⭐⭐ Small and handy but not for everything
*by J***E on September 2, 2024*

DMT is a great brand and I was happy to find these for the price. To me they are a good value but IF YOU ARE NEW TO SHARPENING KEEP READING. These are small, as is accurately stated in the product description. I bought them to keep in a tool box for touching up chisels and the like. They work great for that. I also bought a full size sharpening block to keep in the kitchen for my knives. The DMT set is great and will last for years bur is best for things smaller than a pocket knife This set is a great choice for many jobs and I recommend it, but it isn't for every job. Be safe and buy kitchen tools for the kitchen and shop tools for the toolbox.

### ⭐⭐⭐⭐⭐ Effective and quality
*by A***. on June 3, 2025*

These are a must have sharpeners. They're portable, very light and quality. Different grading, there's fine, coarse and finer. It's safe to use. Works really well. Sharpens your knives fast,efficiently and effectively.

## Frequently Bought Together

- Diamond Machining Technology (DMT) W7EFC Diamond Whetstone Mini Diamond Stone - Coarse / Fine / Extra-Fine - Set of 3
- TOKO Edge Tuner Pro – Ski & Snowboard Edge Sharpener | Adjustable 85°-90° Angle Tuning Tool with Roller Bearings | Professional Ski & Snowboard File for Precise Edge Grinding
- Swix Gummy Rubber Edge Tuning Soft/Hard Stones

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-23*