Best Diamond Sharpening Stones (Latest Reviews) | St.J.G Blog

You will need a diamond sharpening stone to maintain sharp knives in your kitchen. These versatile items are better than other similar products in this niche in many ways. First, these abrasive items are incredibly effective. You can use them to sharpen straight, curved, and or serrated blades with excellent results. They are also portable and last longer than wet stones, making them ideal for personal or commercial use. If you are tired of using a blunt knife while preparing ingredients for meals, this is a good remedy. We have reviewed some of the best for use at home this year.

Which are the best diamond sharpening stones this year? This article will help you find the best diamond sharpening stone for use at home or on the road. We have reviewed the features, pros, and cons of the bestsellers in this niche to help you to find the best. We also have included an equally helpful buying guide.

In a Hurry? 

Below is a short overview of the best products that we are reviewing if you're in a hurry.

Recommended

Best Overall

SHARPAL 156N Diamond Whetstone Sharpener

SHARPAL 156N is a 2-in-1 diamond sharpening stone with a course (325 grit) and fine (1200 grit) side. The coarse edge is suitable for restoring blunt knives. Therefore, it can sharpen most straight and curved edge knives with a bit of effort without scratching or lowering the value over time. You can then finish it on the fine side to get a sharp edge. You also get a guide with 14, 17, 20, and 25-degree angles and a base for storing the sharpener after use.

High-End Pick

Diamond Machine Technology (DMT) W6FP 6-Inch Diamond Whetstone Sharpener

Diamond Machine Technology is a 6-inch whetstone sharpener with a molded polycarbonate base for stability. It rarely breaks and is very easy to use on flat surfaces such as tables and countertops. The fine edge of this knife sharpener never disappoints. It sharpens knives quickly with little pressure. Also, its diamond structure has unique dots that catch metal filing for easier clean-up. You do not need oil to use this whetstone. It comes ready to use off the shelf.

Budget Pick

Atoma Diamond Sharpener Medium

Atoma is a medium-coarse (400 grit) diamond stone sharpener with a portable 8x22.77x0.32-inch design. It is durable, easy to use, and creates a sharp edge that lasts for a long time. As such, for a few dollars, sharpening knives will never be an issue for you. You will also do a better job whenever you are preparing ingredients at home. Do not hesitate to buy yours now. It will help you to maintain sharp knives and tools and therefore cook like a professional. It is also cost-effective and is easy to use.


Benefits of Diamond Sharpening Stones

You will need a set of sharp knives at home to cook tasty meals when required. This is one of the reasons why having a diamond sharpening stone at home is essential. Here are other benefits of these items.

Easy to Use: People had to ship their knives out to have them sharpened professionally in the past. If you can afford a diamond sharpening stone, this will never be an issue for you. They are ready to use. All you do is secure one on a table and sharpen your knife. Also, you do not need oil or water to use one.

Efficacy: Diamond is one of the hardest substances in the world. It is also abrasive and therefore ideal for sharpening hard materials such as stainless steel and cast aluminum. With one, you will do an excellent job quickly while sharpening a knife. They are also ideal for sharpening both straight and curved edge blades.

Durable: Do you need a durable sharpening stone for use at home? Diamond sharpening stones last longer than the wet stones that people used in the past. They also hold up well in commercial areas due to the rigid structure of diamonds. If you sharpen your knives once or twice per week, you can use them for many months.

Safe: Diamond sharpening stones do not use spinning plates or abrasives to restore and hone knives. As such, they are safer to use as you have better control over the knife sharpening process. You will enjoy using one.

About Diamond Sharpening Knives – What to Look for

Coarseness: You will come across coarse and fine diamond sharpening stones online, each beneficial in a different way. Coarse stones are suitable for restoring blunt knives. Fine ones, on the other hand, are suitable for finishing knives or creating a sharp edge. To a good job always, look for a product that offers both benefits. Reversible models with both fine and coarse diamond sharpening stones are the best.

Size: Will you have an easy time holding and using the diamond sharpening stone you are planning to buy? Make sure the product you are buying is an ideal size. It should be easy to hold while in use. Also, it should be able to fit and sharpen your largest knife.

Longevity: Do not buy a product that will break down after days of use. Models made from cheap materials cannot sharpen knives for a long time, which might be a let-down for you. Materials such as the diamond pellets or powder used should be of high quality. Read published reviews to learn more and buy the best.


Top 5 Best Diamond Sharpening Stones (This Year's Edition)

In previous sections, we evaluated the benefits of sharpening stones and how to choose the best. In this section, we have reviewed the five best brands for you. Read on to find one that will serve you well at home.

1. SHARPAL 156N Diamond Whetstone Knife Sharpener with Storage Base

Features:

  • Coarse and extra-fine grit
  • Industrial-grade monocrystalline diamond
  • This steel base (electroplated)
  • Exclusive MirrorFlat technology
  • Three-year warranty
  • Pre-set angle guides
  • Free storage base

SHARPAL 156N has two grit coarse – a coarse 325 grit (45 microns) for edging knives and an extra-fine 1200 grit (or 9 microns) for honing knives. Therefore, to restore worn-out blades or create a sharp edge quickly, this is one of the best products to use. Both grits use industrial-grade monocrystalline diamond as an abrasive and are therefore durable and efficient. SHARPAL 156N does not require lubricants such as oil to work and has a solid electroplated steel base.

The SHARPAL exclusive MirrorFlat technology of the tool creates a flat surface for sharpening knives. It can sharpen straight and curved blade knives without scuffing or damage. You can also use it to sharpen tools quicker than when using an oil stone. Finally, you get a storage box with pre-set angle guides for sharpening knives at 14, 17, 20, and 25 degrees. Follow the instruction guide in the package to set it correctly and use it safely at home or on the road. This field-tested product has a three-year warranty.

Pros:
  • Its field-tested design is durable and backed by a three-year warranty.
  • Has pre-set guides that enable you to sharpen knives at 14, 17, 20, and 25 degrees.
  • A MirrorFlat technology optimizes contact with knives and tools, hastening sharpening.
Cons:
  • Delamination of diamond crystals might occur after heavy industrial use.
Our Verdict:

SHARPAL 156N is an all-in-one diamond sharpener that restores and hones knives and tools. It has a thick base (0.33 inches) with monocrystalline diamonds that last for long. It also has a base with pre-set guides for adjusting its sharpening angle.

2. Diamond Machine Technology (DMT) W6FP Diamond Whetstone Sharpener

Features:

  • Portable 6-inch device
  • Supports knife and tool sharpening
  • Secure polypropylene base
  • Dotted diamond surface
  • Monocrystalline diamonds
  • Oil-free system
  • Free replacement policy

Diamond Machine Technology (DMT) W6FP is a 6-inch device for general tool and knife sharpening. If you struggle with a wet/oil stone to hone your knives or tools, buy one for these reasons. First, its compact design fits snug in hand. It does not slip nor slides under load, making it safe for beginners. It also has a fine diamond surface with dots that clean metal filings as you sharpen. Thus, you can use it for a long time without rinsing or cleaning it, unlike similar products.

Diamond Machine Technology (DMT) W6FP has a plastic base that comes in handy in many ways. First, because of its non-slip nature, it makes handling this product safe and very easy. It also boosts its stability on tables/countertops and prevents damage during storage. The injection-molded polycarbonate plastic used to make it is not only durable but also food-grade.

Pros:
  • The monocrystalline diamonds used to make it last for years.
  • Its secure and non-slip Polycarbonate plastic base makes it easy to use.
  • Its portable design is perfect for anglers and people who travel often.
Cons:
  • It wears out quickly from the corners if the angle of the knife is too deep.
Our Verdict:

Diamond Machine Technology (DMT) W6FP is a good gift item for beginners as it is effective and easy to use. Its monocrystalline diamonds can withstand abuse for long. It also has a secure plastic base that is non-slip and food-grade. You get a good product overall.

3. Smith's 50008 8-Inch Diamond Tri-Hone Bench Stone

Features:

  • Adjustable angle guide
  • Premium tri-hone system
  • Micro-tool pad for small knives
  • Durable 8-inch model
  • Non-slip rubber feet
  • Secure steel base
  • Coarse and fine grit

Do you need a large and commercial-grade knife sharpener that you can use safely at home and on the road? Smith's 50008 is a recommended 8-inch model with a tri-hone system that can handle most knife and tool sharpening jobs. It also has a fine diamond grit (750), 1000-1200 grit Natural Arkansas stones, and a micro-tool pad for sharpening small tools and knives. The coarse diamond grit (325) is suitable for restoring worn-out or dull knives and woodworking tools.

Smith's 50008 is a perfect honing system for beginners and pros due to its premium design. If you need a secure sharpener that you can use safely on demand, it is also one of the best. The product has a secure steel base with non-slip rubber feet for stability. Whether you have a wood table or slippery countertop at home, you can use the product safely on demand. Finally, you get an angle guide for adjusting the sharpening angle of knives when needed.

Pros:
  • Its superior sharpening system has fine and coarse grits that do an excellent job.
  • Its non-slip base is stable and 100% safe to use in most environments.
  • You can adjust sharpening angles via in-built sharpening angle guides.
Cons:
  • The system is too harsh for thin-bladed kitchen knives or tools.
Our Verdict:

Smith's 50008 is like a tank on steroids. Its tri-hone system can sharpen thick knives and tools without sticking or scuffing. It has a sturdy base (steel) with rubber feet that stop it from slipping while in use. It also has a micro tool pad and an easy-to-use angle guide.

4. DMT WM8EF

Features:

  • Monocrystalline diamond
  • Portable 8-inch design
  • DuoSharp system
  • Two bench stones
  • Continuous diamond zone
  • Fine, extra fine, and coarse grit
  • Lightweight (8.8 ounces)

DMT WM8EF DuoSharp is an 8-inch diamond knife sharpener handcrafted using high-quality materials. It features two bench stones (fine and extra fine) for sharpening various knives and tools. The fine grit creates a razor-sharp edge on knives, while its extra-fine grit is suitable for polishing and refining your knives. Finally, you get a continuous diamond zone for sharpening pointed tools and small blades. This affordable bench stone can satisfy the needs of most people. It is one of the most versatile brands around.

DMT WM8EF is a USA-made product the lasts for years. The abrasives are monocrystalline diamond, which lasts longer than conventional stones. It does not burn out/ flakes over time and does not require oil to work. Expect years of good service from this top-rated diamond sharpening stone. DMT WM8EF fits comfortably in hand and is therefore easy to use. You can also travel with one in a backpack safely.

Pros:
  • Handcrafted using the highest quality materials, this sharpener lasts for long.
  • The monocrystalline diamond abrasive used on the product is durable and effective.
  • Its oil-less system is not only safer to use, but also faster than conventional sharpeners.
Cons:
  • It lacks an angle guide, unlike most similar products in this niche.
Our Verdict:

The DMT WM8EF will help you to maintain sharp and multi-functional tools at home without costing you a hefty sum. The diamond abrasive can sharpen both tools and knives. It is also durable and has a portable 8-inch design that works indoors and on the road.

5. Atoma Diamond Sharpener Medium

Features:

  • Monocrystalline diamonds
  • Medium grit - #400
  • Sharpens knives and tools
  • Long lasting design
  • Portable (8x2.77x0.32-inches)
  • Lightweight (0.6 kilograms)

While the Atoma Diamond Sharpener does not last for eternity, it does a good job always. Its medium-coarse design (400 grit) is not only suitable for sharpening knives but tools as well. Thus, whether you are a professional chef or a woodworker, you will have an easy time honing your knives and tool. Its compact design fits snug in hand. It contains monocrystalline diamonds, which withstand abuse for a long time. The material also sharpens without ruining knives or tools.

Atoma diamond sharpener has a portable 8x2.77x0.32-inch design. You can fit it in a backpack and transport it to your worksite without cluttering personal space. You can also use it on fishing boats or during your long trips to the bush to keep filleting knives sharp.

Pros:
  • The medium grit diamond crystals used to manufacture it are effective and durable.
  • Its portable design is suitable for people who spend a lot of time outdoors.
  • Atoma offers replacement sheets, making it a budget-friendly product.
Cons:
  • You will have to spend more money on a secure base as it does not have one.
Our Verdict:

This medium grit diamond sharpening stone is ideal for sharpening tools and knives. It has a portable and durable design that is suitable for traveling. Although it does not have a base, you get a large contact area that is beneficial in two ways. First, it is safe to handle. It also fits large knives, which you can sharpen quickly.


Final Thoughts

Buying a diamond sharpening stone is ideal as it can restore and hone both tools and knives. They last longer than conventional wet stones and are easier to use as you do not need additives such as oil. Our top five picks offer these benefits. Check them out and buy one for your home. It will help you to cook like a pro.


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