Best Electric Knife Sharpener – Buyers Guide Oct 2021

Knives sharpeners, as it has been aforementioned, have can be broadly classified into two categories- electric and manual knife sharpeners. Manual sharpeners demand a lot of patience and skill and are often used by the chefs and survival enthusiasts to get the desired amount of sharpness at the desired angle. But if you are a professional who would need a knife to perform instantaneous tasks, manual sharpening would not be recommended to you. You would need an electric sharpener that sharps your blade just the way you would want it to carry out regular everyday tasks without losing time and patience.

Electric knife sharpeners truly reflect the collective history of us as a race, as from being inarticulate beings using rough stones to sharp our spears to finally having a machine do the sharpening, we have truly come a long way.

Electric knife sharpeners are the modern-day, technologically advanced knife sharpeners that are fast and convenient to use. If you think you might suck at sharpening a knife because you are clueless about the tricks of the trade, worry no more. These knife sharpeners are extremely purposeful, easy to handle and above all, noob-friendly.

All you need to do is place the knife across the knife sharpener and it will take care of the rest. It will provide sharpness, precision and mirror-like glaze to your blade, and that to at your desired angle. The electric sharpeners are shaped like a box, having a slot for motorized grinding machine.

For the obvious reason of technological advancement, the electric sharpeners cost a bit more than their manual counterparts. But the reason why electric knife sharpeners have an upper edge over the manual ones is that the time and energy saved while using the electric ones is worth every penny you would be investing in them.

Best Electric Knife Sharpeners Of 2021

Editor's Choice

Work Sharp WSKTS-KO-W Knife & Tool Sharpener

Ken Onion Edition Sharpener
Work Sharp WSKTS-KO-W Knife & Tool Sharpener
  • DIMENSIONS: 5.5 X 10 X 6 inches
  • WEIGHT: 4 pounds
  • REVIEW STARS: 4.6/5
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This is one knife sharpener that is specifically designed to sharpen almost all of your knives.  It is actually one of the best variants available in the market. You can clearly watch the process as it unfolds. The sharpening speeds can be adjusted and you can vary the sharpening speeds according to your needs. The sharpener allows you to do away with a lot of metal on the blade by sharpening at high speeds, while at the same time, you can be as delicate as you want to, by using finer grain belts and by slowing sharpening speeds. The speed versus precision ratio is maintained by the way you choose to use your sharpener.

The sharpener incorporates a fully adjustable precision sharpening guide, which has a sharpening angle range of 15 to 30 degrees. The sharpener comes with an adjusting knob that can be used to adjust the angle between 15 and 30 degrees. The handling of the guide is extremely easy with just one knob, and no tools, setup time or other complications are there. To add more to its features, the guide can be removed altogether from the rest of the apparatus to make way for free grinding- something that will come very much handy to the ones who would want to sharpen lawn mower blades, axes, shovels, weeders, machetes, EDCs or other cutting tools.

The sharpener also comes with a premium 12 inches x 0.75 inches abrasive belts. These belts are incorporated so as to put a convex edge to the knife’s blade. Convexity in the edge not only makes it sharp and durable than a flat edge blade, but it also makes it extra strong and better. These belts are specifically engineered to polish the blade metal without compromising on the strength by exposing it to excessive heat. The abrasive belt is a NoraX one, that outlasts the conventional abrasive belts by 2 to 5 times.

This sharpener is quite versatile and expendable with optional attachment features. An optional Blade Grinding Attachment comes along and gives you the liberty to come up with custom knife profiles and edge finishes, while a dedicated attachment for tool grinding is available metal grinding and tool sharpening tasks.

This machine is the definition of awesome. The bottomline is, always follow the usage directions and the sharpener will prove itself to be the best knife sharpener you have ever owned.

Best Sellers

Chef’sChoice 1520 AngleSelect Professional Electric Knife Sharpener

Sharpens straight edge and serrated knives
Chef’sChoice 1520 AngleSelect Professional Electric Knife Sharpener
  • DIMENSIONS: 12 X 6.2 X 6.4 inches
  • WEIGHT: 4 pounds
  • SHARPENING ANGLE: 15°, 20°
  • REVIEW STARS: 4.5/5
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The product is dimensioned at 12 x 6.2 x 6.4 inches and this makes its design purposeful to fit the countertop of your kitchen. The sharpener is designed in such a manner that it sharps knives of every origin, be it Asia, Europe or the Americas, with a lot of ease. The great thing about this sharpener is that it cannot only renovate the lost sharpness of the knife blade, but it can also rebuild the perfect 20 degrees sharp edge for European knives and 15 degrees for the Asian ones.

The knife sharpener also boasts of having a multiple utility induced sharpening arrangement that includes abrasive belts made 100 percent of diamond. Further, the knife sharpener comes along with a patented design of polishing/stropping discs that facilitate the sharpener in creating edges in the form of ‘Gothic arches’, something that brings immense sharpness and good aesthetic value to the blade.

This knife sharpener is one of the best available in the market, and the reason being its amazing performance coupled with durability. The sharpener has been specifically designed to produced long and sharp edges by using its sharpening guides that don’t cease to impress anytime. These guides can position the knife in automated settings and sharp in varying tones and textures. The product can be used upon a variety of knife types. From the regular EDC knife, to the Japanese styled Sankunto, or any other survival or sport knives, this sharpener will adjust itself for all of them.

The patented spring guides, are a feature of this sharpener that could be termed as its biggest selling point. These springs are very flexible and they efficiently control the knife sharpening angle.

Some users might have had a little grievance that the product is too pricey, and it is not conventional knife sharpener to use. But then again, we all have conventions everywhere, and if you need a bit of variety in your knife sharpening endeavors, this sharpener is meant for you. Keeping in mind the high reputation its makers, Chef’s Choice enjoy in the market, its quality, its performance and reduced noise levels, I assume it will be safe to say that you might well shell out a couple bucks more for this absolute performer.

Reader's Pick

Presto 08800 EverSharp Electric Knife Sharpener, 2 stage, Black

Creates a razor sharp edge in seconds
Presto 08800 EverSharp Electric Knife Sharpener, 2 stage, Black
  • DIMENSIONS: 9.9 X 7.2 X 4.8 inches
  • WEIGHT: 3 pounds
  • SHARPENING ANGLE: Two-stage system
  • REVIEW STARS: 4.4/5
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This knife sharpener is the latest variant from the parent company, National Presto Industries Inc. The product boasts of a super stylish, ultra-modern and sleek design. This sharpener is an epitome of craftsmanship and evidently, a lot of thought has been put to design the details. While its sleek stainless steel design with a color combination of black and grey perfectly complements the countertops of the new-age modern kitchens, it has rounded edges, which makes it a top contender to be a part of the traditional kitchen systems as well.

This knife sharpener is compatible with most of the kitchen knives. It has a sharpening angle range of 20 to 28 degrees. This sharpener is capable of making long edges and it’s a fact that higher the edge angle, higher the performance and durability. A common mistake that the amateur knife enthusiasts commit while manually sharpening their knives is that they settle in for shorter angles, which results in buckling of the knife blade and the blade loses its sharpness too soon. This issue is completely resolved with this best knife sharpener as it will not only save time, but it will sharp at higher angles to make the blade long-lasting.

The sharpener also does score brownie points in its ability to cater knives of different sizes. It could be your regular 2 inches long blade multi-utility pocket knife or it could be a 12 inches machete. The knife does its job in a terrific way by sharpening both of them with ease, precision and smoothness.

Watch the video below how to sharpen your knife using Presto’s 2 stage sharpening system.

This sharpener uses the same technique that is used in the professional knife sharpening shops. It uses rapidly rotating sapphirite grinding wheels. This knife sharpener incorporates a two fold mechanism for sharpening and honing. The stage one half of the machine looks after grinding and sharpening activities while the stage two half is made to focus on the honing of the knife blade.

The bottomline is, this product is an absolute keeper. It is designed to be used with a lot of knife types. This 8.25 x 5.75 x 4 inches sharpener is perfectly suitable for knives made up of alloy, carbon or stainless steel. This machine can also sharpen non-electric serrated knifes that are serrated only from one end. This sharpener is easy to use, safe and sturdy, and it comes with a 1 year warranty against defects.

Top Pick

McGowan fixed blade, Hunting knife, Outdoor, Camping kitchen

Built for Performance and Durability
McGowan fixed blade, Hunting knife, Outdoor, Camping kitchen
  • DIMENSIONS: 8.2 X 7 X 6.2 inches
  • WEIGHT: 2.2 pounds
  • SHARPENING ANGLE: One-stage system
  • REVIEW STARS: 4.1/5
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This 8.2 x 7.6 x 2 inches electric knife sharpener is one of the best and easy to use sharpeners that are around in the markets. This sharpener is user-friendly and produces a really sharp and polished edge on the knife. Its small and compact size makes it an ideal choice to put it on your counter top, as big sized sharpeners can come off as real nerve-tickling machines when you have to take out the whole big knife sharpener out of the cabinet to shave one knife.

The upside of this sharpener is that it comes with the mechanism to sharpen both the edges simultaneously, a feature which as a matter of fact would normally come along with the knives that are priced to be at the high-end of the market. So this sharpener is an absolute deal. You can always buy a knife that is priced at a mid-range and couple it with a good quality knife sharpener like this one, instead of going for highly priced fancy knives which often underperform and end up burning a hole in your pockets.

The tricky part with this sharpener is that it takes its own time to settle and allow your knives to get a hang of it. But that is not any problem here as the makers put down clear instruction about how to go slow and steady with the sharpener. Once the sharpener is set for the knife, it will yield impressive results and the knives will match the sharpness and shine with those sharpened with high-end multiple grit stone sharpeners.

The electric sharpener comes in a 120 V version and weighs 2.2 pounds. This sharpener is a little bit tough to work when it comes to knives with serrations but it is not so bad either. If you have a dull and serrated old knife, you can always use it and get a shiny polished edge with great sharpening.

This sharpener is not only a high-performance machine for your survival knives, but it can come handy as a utility knife sharpener that might complement your kitchen or serve you in the garage. The sharpener can also come off as a great gifting idea for your loved ones having a knack for knives and survival adventures. The sharpener will not let you down and will ensure you get a fine shave, and with the kind of money you would invest in it, it will be always a better option to have this sharpener instead of hiring someone to sharp your knives.

Best Pick

Smith's 50281 Adjustable Edge Pro Electric Knife Sharpener

Best Adjustable Electric Knife Sharpener
Smith's 50281 Adjustable Edge Pro Electric Knife Sharpener
  • DIMENSIONS: 10.4 X 5.8 X 3.8 inches
  • WEIGHT: 6.7 pounds
  • REVIEW STARS: 4.1/5
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This 6.7 pounds sharpener comes in a size of 10.4 x 5.8 x 3.8 inches. It is an ideal sharpener for your home as well as outdoors, as it can sharpen a wide variety of knives. It could be a standard edge knife or a beveled one, the sharpener just works wonders with the knives.

When it comes to sharpening knives, blade-enthusiasts might have different tastes and approaches to sharp their gear. This sharpener is for the ones who choose to remain on the brighter side of technology as this sharpener radically reduces the time and efforts put in to get a shiny and sharp blade edge. It might be a little bit pricey for its segment but it is a well-known fact that good quality does have a bit higher price. Moreover, it comes with a three year official warranty, so that makes it a real fair deal.

The sharpener works very well with all kinds of knives. Be it survival knives, tactical warfare knives, EDC knives, heavy duty knives or any pocket knives, this thing is the answer. This is one sharpener that reduces all the effort of sharpening knives to one single step. You just insert the knife into the slot and bring it back to sharpen it. There are two sharpening slots provided in the sharpener-one for fine sharpening and another one for coarse sharpening. The coarse sharpening slot is meant for the dull knives and eventually you can move on to fine slot after sharpening them through the coarse one.

The knife has a high aesthetic value as well as great ergonomics. While taking a closer look at the sharpener, you would find that the surface to rest your hands is properly designed and rubber has been used to make it stay comfortable.

The biggest selling point of this knife would be the way it facilitates sharpening of knives at different angles. There is a knob attached to the sharpener to adjust the angles to suit your purpose. The knife sharpener stands out from the rest in terms of guiding the user to sharpen his blade. The sharpener comes with a manual that directs you how to sharpen your tool step by step.

The final verdict would be that the knife sharpener is a great buy, and with the price it has, it totally lives up to its expectations and it is going to assist you for a really long time. This is one of the best knife sharpener available in the market.

Budget Pick

Wusthof PEtec Electric Sharpener, Gray

Wusthof PEtec Electric Sharpener, Gray
  • DIMENSIONS: 10 X 6 X 6 inches
  • WEIGHT: 4.6 pounds
  • SHARPENING ANGLE: Three-stage sharpening system
  • REVIEW STARS: 4.6/5
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This 5 pounds heavy knife sharpener comes in a size of 10x6x6 inches. It is a compact design and it is not too much an effort to carry around. PEtec stands for ‘Precision Edge Technology’ and this sharpener was specifically designed for the PEtec range of knives or knives having a similar shape. Chef’s choice and Wusthof, the two cutlery majors in the market have come together to arrive upon the PEtec range of sharpeners. This PEtec edge is essentially a 14 degree angled factory edge that is provided on either sides of the knife, thus making the overall edge angle to be 28 degrees, something that is quite impressive. Apart from sharpening the PEtec range knives, the knife sharpener has shown a great track record when it comes to sharpening kitchen and other utility knives.

Again, for the ones who choose to remain on the technology’s side, the PEtec feature in this sharpener stands out of the rest. The sharpener boasts of automatic machine controlled machinery that ensures high precision in sharpening every time you put the blade in the sharpening slots. As most of the high quality technologically advanced sharpeners, this product has 3-stage sharpening system. The first stage contains 100 percent diamond abrasives that are used to precisely sharp the dull and used blades of a knife. The second stage comes later where finer grit diamond abrasives take care of honing of the blades. The third stage is used for providing a quality polished finished to the knife blade. Ultra-fine stropping material is used in this stage to ensure a razor sharp edge. The third stage is also used for the knives having serrations.

The knife sharpener is designed to meet quality in ergonomics, aesthetics as well as in the functioning of the product. It sharpens the knives upto the standards that are set for the PEtec quality blades. Both the sides of the blade are ensured to be sharpened uniformly. The ergonomic design makes sure the element of safety is provided in the sharpener, as the feet is non-slippery.

What Features To Look Out For In Your Electric Knife Sharpener?

Electric knife sharpeners are in all the ways, a boon to the cutlery industry by the technology. While they are a bit heavy from their manual counterparts and require a bit more of storage, they solve the biggest problem of all, and that by being efficient and time saving. Even a noob can easily sharpen their knives, so electric knife sharpeners really give you the ease of access.

Whenever you decide to buy your sharpener, you first look into its all the capabilities and features. The first and foremost of them will be the performance. The performance of a knife sharpener will be dictated by the features it has. The knife sharpener should have multiple slots for sharpening, honing and stropping of knives, they should have pre-adjusted sharpening angles and could also be re-adjusted according to the usage of knife.

The next parameter that you should consider into play while buying a knife sharpener is ease of access. The knife sharpener should not be too much heavy; it should be light-weight enough to be carried around from the kitchen to garage. It should also be light enough to be a part of your adventurous trips anywhere under the sun. Secondly, it should occupy minimum space in order to be adjusted perfectly in a variety of counter-tops.

The next thing might be the most important parameter associated with buying of any sharpener, and that would be pricing of the product. They are plenty of sharpeners available in the market with varying price-ranges. The higher end ones usually cost much while they deliver quite well upon their promises. The knife sharpener should have an affordable pricing coupled with durability and performance. This is the key combination that you will be looking out for.

The next thing that happens to play an active role in your knife sharpener-buying process is the usage. The kind of usage you would want will again depend upon the kind of usage you have with your knife. Ideally, you should go for the knives having adjustable features, like multiple slots for knives having a varied character and different usage. You can buy a knife sharpener that gives you a freedom to sharpen your edges at angles at steep as 28 degrees if you are a survival enthusiast of a military person.

The final verdict would be that if you want an ideal knife sharpener, the features you would be looking in a knife sharpener should reflect its low-cost, ergonomic and aesthetically pleasant design. The product should be durable and score high upon performance and it should work with a variety knives without a hassle, and lastly it should not be a menace to use and carry around.

Pros of Electric Knife Sharpeners

Easy Usage

These electric sharpeners appeal to most of the users because they just have to be plugged in and the knife shoved in, and the rest would be taken care of.

Elimination of Guesswork

Sharpening with electric knives eliminates the usage of the necessary skills required in the case of manual sharpening. There is no need worry about putting the right pressure on the blade to get even surface, and no need to worry about hunting for the right sharpening stone.

Cons of Electric Knife Sharpeners


The electric sharpeners have a decent price tag attached to them. For sharpening, polishing, stropping and honing slots in one machine, they might cost somewhat more than the manual ones.

Occupy more Space

Usually, these sharpeners are quite bulky to transport and they comparatively take up more space than their manual counterparts.