

💼 Sharpen like a pro, anywhere you go — your edge, your power.
The DMT Dia-Sharp 3-pack features credit card-sized diamond sharpening stones in coarse, fine, and extra-fine grits (45, 25, and 9 microns) with a durable monocrystalline diamond surface. Designed for professionals and enthusiasts alike, this portable kit fits in your wallet and sharpens quickly without oils, delivering consistent, precision edges anytime, anywhere.
























| ASIN | B00006IIO3 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #68,546 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #120 in Sharpening Stones |
| Brand | DMT (Diamond Machining Technology) |
| Color | Blue, Clear, Red |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,191) |
| Date First Available | August 22, 2002 |
| Global Trade Identification Number | 00017042007546 |
| Grit Rating | 9 |
| Grit Type | Coarse,Extra-fine,Fine |
| Included Components | DMT D3EFC 3-inch Dia-Sharp Sharpener, Credit Card Sized- Extra-Fine, Fine and Coarse Diamond -Set of 3 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 0.32 ounces |
| Item model number | D3EFC |
| Manufacturer | DMT |
| Material | Micronized Monocrystalline Diamond |
| Number Of Pieces | 1 |
| Number of Items | 3 |
| Part Number | D3EFC |
| Power Source | hand_powered |
| Product Dimensions | 3.25"L x 2"W x 0.05"H |
| Size | Small |
| UPC | 735090243289 017042007546 798167684781 |
| Warranty Description | Manufacturer Warranty |
K**7
FULL REVIEW
First of all Excellent Product. They are truly credit card sized. Product Review. How to Use: They are the size of a creditcard, and on the back side of the plate is a sticker that tells you the stones information. Blue says: D3C: Coarse, 45 micron (325 mesh). Red Says: D3F: Fine, 25 micron (600 mesh) Green Says: D3E: Extra Fine, 9 micron (1200 mesh) Under that is the DMT logo with their phone number and website address. THe sticker is clear with the letters in the color related to the identification of the stone mesh. When you hold the sharpening stone plates you can feel the weight to them and if you lightly run your fingers over the sharping side of the stone you can feel the coarseness of the stones. You can also see the diamonds shining on th coarser stones the Blue and Red, as where the green coded plate the extra fine it looks like a piece of polished metal. BREAK IN PROCESS: To break in your stones use a cheap knife if you want I did. you may see little discoloration spots on the stones and trust me, it does nothing to the stone. They still sharpen your tool. It does not take alot of pressure to get these diamonds to cut. I use the amout of pressure on my stones as you would just resting your hand down on a counter relaxed. People saying they when they sharpen their tools or knifes with these stones and the diamonds are coming off, that is because they are pushing too hard. Rarely would it be a product defect. SHARPENING PROCESS: They say you do not need to use water or oil. I get my stones lightly wet with some water before sharpening. The reason is the water on the stones else collect the loose shavings so you don't have to worry about them in the cleaning process. To hand sharpen a knife for example, you can hold the stones in your hand and while *PAYING ATTENTION* sharpen your knife quite easy with out cutting your self. The way I hold the stones is the following. Follow these steps. (wish i could upload photos) Palm up hand open take your ring middle and index finder and put them together, if you have small hands use ur pinky too. Now your thumb you can brace the corner of the stone if you want but you wont need to because you will not need to use alot of pressure, hence the stone wont slide around on your hand. The weight of the stone will be enough to rest in your hand or on your fingers with out it moving around. Now I don't wear gloves while sharpening knifes and I know I should for stones this size and because they are being help in my hand. Yes I can easily cut my self, but I like to feel the stone in my had and I have the experience. For this review I am going to advice you to wear some sore of protective leather gloves, just for my own peace of mind so if you loose concentration or slip you don't cut your self. It requires little pressure and just go slow. one pass should take 2-4 seconds. Do not go fast go slow and steady. Start with the blue stone, then the red stone then the green stone. For touch ups on knifes green or red may be enough. For some good re beveling blue is needed or if it is really dull. If you have to do allot of re beveling and deep shaving these are not the right stones for you. Look into the DMT Dia Sharp 8" Stones. They come in all 6 grits. These are for on the go or even at home simple and quick sharpening. For any big projects like a busted tip knife, super bull knife you need to look into the DMT Dia folds and or the DIA sharp stones. I do say the 8" DIA sharp stones because they are the only size in all 6 Grits. from Extra Extra Coarse to Extra Extra Fine. CLEANING: To clean your stones simply run them under water and get a soft tooth brush from the store and lightly scrub them. the water and the tooth brush is enough to get the metal filings out. Do not use a SOS pad or a metal wire brush Why you ask? 1. these stones will cut the metal from the brush and just embed more metal into them. 2. You can scrape off the diamonds if your pressing really hard. All you need i a tooth brush and some running water. Now for some harder cleaning you can use some commet or dish soap. If you do not press super hard on these stones and use light pressure and rinse/wash them after each tool you clean you wont have shaving deeply embedded in them. I will sharpen 1-3 knifes before cleaning. STORAGE: For storing these stones, please make sure the are 100% dry. After cleaning them as mentioned above you need to dry them. do not rub them dry with a paper towel or a towel. Simply pad them dry. If you want use a hair dryer after padding most of the water off or a air compressor and lightly blow off any extra moisture. Place them back in the corresponding sleeves. I put my stones with the cutting side facing to the colored side of the holder. The reason is the transparent side is a bit short and you have a chance of your stones being slightly exposed and I would rather have the back of the plate corner exposed than the cutting front side exposed. Finally I would recommend these stones to anyone who wants to keep and maintain their tools properly. They are the right size for travel. If you are a prepper they are truly pocket sized and the size of a credit card. It is worth to but this combo pack and not the individuals. You truly use all 3 stones. If you have the bigger bench stones you should still get these. They are small enough and would be perfect for a hunting/fishing tackle box. They will NOT sharpen Serrations. For that you need the "Diafold Serrated Knife Sharpener". I would recommend that you buy all three variations of those as well. I wish these came in Extra coarse and Extra Extra fine. Maybe in the future they will come out with them in those styles. With enough pressure from consumers they will have the incentive to make them. If there is a demand there will be a supply as the person from DMT told me on the phone. If you are ike me and want the 12inch Magna Stones or the "Diafold Serrated Knife Sharpener" in all 6 variations of mesh please call DMT and tell them. They need to know they there is a demand for them before they will make them. I hope this review was helpful if so please click like and comment if you wish. IF it was not helpful please leave me a comment telling me what was not helpful and what information was lacking and I will be more than happy to add the information to the review. Have A Wonderful Day!
M**K
Brilliant, convenient, portable, highest quality
OH I LOVE this set. WONDERFUL! First of all, it's a DMT product, and their diamond crystals are superior to the competition to begin with. Normally, diamond sharpening stones have the characteristic honey-comb appearance. The purpose for this is to help remove the metal dust created by the sharpening process. The dust falls into the honey-comb pattern, keeping the cutting surface clear. That's great, and it works very well on knife blades. But that pattern is a problem when sharpening tiny things, and pointy things. Anything small enough to partially "fall" into a honey-comb hole pattern requires a continuous sharpening surface, like these! I have only had this set for a few weeks, and have used them a zillion times. Most recently, last night. My wife shopping (Amazon, naturally) for yet another pair of tweezers. I asked her to show me the "dead" ones, and she brought down her tweezer grave-yard box. In short order I had re-dressed those tweezer surfaces to better-than-new performance. Then I went after my heavily abused "tool" quality tweezers, and THOSE are all now good enough to pluck Tinkerbell's nostril hair. (video pending) Here's something else... last week, I was shopping for a new "head" for my electric razor. It's a very nice 3-head Norelco. But when the head wears out, it's expensive to replace. I took the cutting blades out, lubricated just the "fine" sharpening plate with a few drops of water, and gave the cutting surfaces a bit of a polish. Holy cows! It's like night-and day difference! With just those TWO items sharpened, this set has more than paid for itself already. Now THAT'S value. Despite their tiny (credit-card) size, they are fairly heavy, so I was not carrying them every day. Well, I've changed my mind. They are just TOO useful to be without, and now they have a permanent home in my Maxpedition Versa-pack. (a manly guy satchel, not a "fanny pack". So there.) Now, ONE little warning: These are a set of tools, NOT some kind of magical sharpening machine. No more than a nice socket set is a magical tune-up macine for your vehicle. I see negative reviews here on perfectly wonderful sharpening sets, which is absurd. It's like saying that your car runs rough because your craftsman socket wrench did a bad job tuning your car up. Every tool has it's physical properties and limitations, and sharpeing requires a little bit of knowlege and skill. The more practice you get, the better your understanding becomes. (well, for most people, anyway.) If you're new to sharpening, you will get much better results if you do a little bit of free reading on the Internet, and watch a few YouTube videos to see how experienced people do it. And yes, you'll find even the "Pro's" contradict eachother all the time. Don't worry about it. ANYONE can put a really decent edge on a piece of steel with a little practice. (I recommend DMT's other knife sharpening products as well.) PERFECTION... well, that's another story all together. There is a lot of "obession" in the sharpeing game. Take your skills as far as is comfortable for you. Just keep it fun. -Berk
R**T
Handy and durable sharpener
I have many diamond sharpening 'stones' acquired over many years. My oldest set of three credit-card-sized 'stones', from EZE-Lap, is over 40 years old, has been much used, and still works well. This set, although bonded by a different process, sharpens well, if a little rough. When new, diamond 'stones' are very aggressive, but they soon smooth out, leaving a better finish. My only complaint is that the color-coded labels in this new set were switched between the Medium and Extra Fine stones, but were easily peeled off and re-applied correctly.
D**E
Worth the price for the Convenience
Love the size and the quality of these sharpening stones. I keep them handy in my tool pouch where they take up very little room. I bought a second set for hiking. Easy to use, although they may be small for those of you with extra big hands, and easy to clean by rinsing with a little water. They are a little expensive but worth the price for the convenience.
H**Y
鹿の解体に使うナイフに毎日使っています。自宅でも職場でもナイフケースに入れて持ち歩けるので重宝しています。YouTubeでどこかの国のシェフさんかな、研いで絶賛されていてカードの使い方を見ることが出来ます。 毎朝、家を出る前に、ナイフをこのカード3枚で研ぎ、革砥で整えています。
M**S
Eu tirei foto dele embalado, mas já foi testado. Ele é do tamanho de um cartão e cada um vem dentro de uma capinha com cores diferentes, porque cada um é diferente.
E**S
Rápido afilé con el set un cuchillo higonokami que por accidente le arruiné el filo con un afilador V-shaped chino barato que x curioso compre y con las tarjetas diamantados restauré el filo y pasó de nuevo satisfactoriamente la prueba del papel "térmico" ( yo pruebo mis cuchillos y navajas con las notas emitidas del super que son de papel térmico más delgado y un poco más flexible). Contento con la compra y con la facilidad con que recuperé el filo del higonokami.
C**.
Ich habe mir aufgrund guter Erfahrungen mit DMT-Produkten dieses kleine Set zum Schärfen für zwischendurch gegönnt. Der Preis war im Angebot von knapp unter 30 Euro total in Ordnung. Das Produkt selbst kommt schlicht verpackt in Plastik in einzelnen Hüllen ins Haus. Die positiven Details: - Klein: Die Schleifplatten passen in die Geldbörse in den Karteneinschub und können somit bequem mitgenommen werden - Der Abtrag des Materials ist von grob bis fein durch Diamant leicht zu bewerkstelligen. Leichte Ausbrüche lassen sich mit der blauen Karte entfernen und bis hin zu einer sehr guten Gebrauchsschärfe sind die Körnungen sehr ausgewogen zusammengestellt. - Die Karten sind ebenfalls farblich mittels Aufkleber markiert. Ein Vertauschen somit ausgeschlossen. - liegt angenehm in der Hand - wertiges Produkt Die negativen Details: - Aufgrund der Größe etwas fummelig in der Anwendung, aber mit Übung kein Problem - relativ schwer für die tagtägliche Geldbörse, daher für mich eher kein EDC (abhängig von eigenem Empfinden) Für das gedachte Einsatzgebiet unterwegs eine klare Kaufempfehlung. Für den täglichen Hausgebrauch würde ich etwas anderes empfehlen. Produkt kam wie beschrieben und war am nächsten Tag da.
✔**S
Ce lot de 3 affûteurs en métal diamanté présente la particularité d'être au format carte de crédit pour les emporter facilement avec soi. C'est d'ailleurs ce qui a motivé mon achat. Chaque carte propose une granulométrie différente : - Bleu : Grain 325 (affûtage "Grossier") - Rouge : Grain 600 (affûtage "Fin") - Vert : Grain 1200 (affûtage "Extra fin") Les cartes ne sont fonctionnelles que sur une seule face. Sur l'autre face il y a un autocollant correspondant à la couleur de l'étui pour rappeler le code couleur (pratique). Eviter de tenir la carte dans votre main pour affûter votre couteau pour ne pas vous couper un doigt qui dépasserait ! L'idéal est de poser la carte sur un morceau de caoutchouc et de mousse pour qu'elle reste bien en place durant l'opération sans avoir besoin de la tenir. Au toucher, les cartes sont rugueuses (normal) donc si vous souhaitez les empiler dans votre portefeuille sans les étuis, ça peut coincer au moment d'en sortir une seule. Personnellement, je transporte en permanence plusieurs types de "cartes outils" dans mon portefeuille. Certaines sont disponibles sur Amazon, dont voici un exemple : - Carte loupe (un lot de 10 à prix imbattable !) : https://amzn.to/3dxzqIg ou ici : https://amzn.to/2A89zsY - Carte multitool PRT : https://amzn.to/2B5gPWo ou ici : https://amzn.to/3dYxHge J'ai fais des commentaires sur ces produits si vous voulez voir. Greg Voir mes autres avis --> https://amzn.to/2QMwmij
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