8 Best Knife Sharpeners in 2023 – Reviewed & Rated

Some time ago, in order to have well-sharpened knives, you had to turn to an expert knife grinder who knew perfectly well how to satisfy us, but today thanks to the birth of some specific products, you can safely proceed on your own.

By now there are many fans of knives in circulation, in a nutshell, they are collectors who love to choose the most original and avant-garde models.

For this reason, it is essential to have a knife sharpener on hand to keep them sharp and functional at all times.

SaleRANK NO. 1
Longzon 4-in-1 Knife Sharpener [4 stage] with a...
  • BUY TODAY to get no-worry 24 months . High quality: The grinding position is made of tungsten steel, emery, high-hardness ceramics and other materials, which can be used for more than 3 years.
  • Multi-function: With the 4-stage knife sharpener, you can sharpen blunt knives easily and professionally. Three step sharpening process (coarse, medium, fine). Keeps your kitchen knives brilliantly sharp. (Note: Not suitable for serrated knives)
  • Ergonomically design: Non-slip rubber base and ergonomic handle bring good cooking experience. It is perfect suitable for both right-handed and left-handed users. You can use it with both right hand and left hand. The bottom of the knife sharpener has non-slip rubber bases that prevent slipping during use.
SaleRANK NO. 2
4-in-1 Kitchen Knife Accessories: 3-Stage Knife...
  • 3-Step Knife Sharpener: With our incredible 3-slot system, we’re revolutionizing the art of knife sharpening! The 1st diamond sharpening rod repairs and straightens damaged blades before the 2nd slot sharpens to restore its V-shape. Finally, the 3rd slot fine tunes for a clean polish.
  • Easy to Use: Whether you’re right or left-handed, the ergonomic handle allows you to restore your cooking knives in a matter of seconds! Simply place the blade in each of the slots and gently pull the knife through a few times for fast, effective sharpening.
  • Cut-Resistant Glove Included: At Kitchellence, we put the safety of our customers above all else. Designed with a non-slip base, our kitchen knife sharpener offers comfortable control while you work. We’re even including a cut-resistant glove for added safety!
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Intelitopia Complete Knife Sharpening Stone Set...
  • 【Complete Knife Sharpening Stone Kit】You don't need to be a Pro to sharpen your blades, all you need is the right tools & technique. All the sharpening tools you need are here, one affordable set for you: 400/1000 & 3000/8000 grit whetstone; Coarse flattening stone; Non-Slip Bamboo base; Knife sharpening angle guide; Leather strop, a simple instruction manual about how to use and what does every component do.
  • 【Dual Sided Whetstone】Our wet stone is made of highly durable and professional-grade corundum which is aluminum oxide. 400/1000 grit whetstone to sharpen dull knives, 3000/8000 grit whetstone combination is designed to make your knives razor-sharp & provide extra fine finish/polish on your blades. Coarse flattening stone to keep your whetstone flat all the time. Using the leather strop made of genuine cowhide leather to polish knife and removing burr after sharpening.
  • 【Multipurpose】Our professional-grade knife sharpener kit is highly durable & long-lasting. Please choose the appropriate grit stone according to your knife blade. Our whetstone sharpens any blade out there: any kitchen knife set, chef knife, steak knife, santoku knife, paring knife, sushi knife, cleaver knife, Henckels knives, Victorinox knife, kitchen knives, Japanese knife, butcher knife, paring knife, BBQ knife, Hunting Knife, Pocket Knife, Scissor, straight razors!
AccuSharp 001C Knife Sharpener
  • EASY TO USE KNIFE SHARPENER: This is the perfect knife sharpener for chef’s knives, paring knives, serrated knives, filet knives, cleavers – you name it. If you own a knife, you need this sharpener.
  • GET A SHARP EDGE IN 10 SECONDS: A sharp blade makes it easier to get work done quickly and safely. The innovative AccuSharp Knife Sharpener lets you sharpen most blades in around ten seconds.
  • DIAMOND-HONED TUNGSTEN CARBIDE SHARPENER: AccuSharp sharpening blades are crafted from diamond-honed tungsten carbide, one of the hardest known materials. With it's unique design, the sharpening blades can be reversed doubling its life span.
SaleRANK NO. 5
Rolling Knife Sharpener Tool Kit, Multi-Angle...
  • 【Efficient Knife Sharpening】One end features a 400-grit diamond surface for sharpening, while the other boasts a smooth ceramic surface for polishing.
  • 【Multi-Angle Base】Our base offers 4 angles to meet diverse needs. The 12° and 15° angles ensure razor-sharp precision, ideal for tasks like sushi and high-carbon steel knives. Meanwhile, the 20° and 25° angles provide durable edges, perfect for robust kitchen cutting tasks and more.
  • 【Savor Sharpening】Compared to conventional sharpening stones, our rolling sharpener provides a more effortless and comfortable experience, seamlessly blending functionality with refined craftsmanship.
JCHOPE Knife Sharpeners, 4 in 1 Kitchen Blade and...
  • [4 SLOTS MEET YOUR SHARPENING NEEDS]: Knife sharpeners: ① Scissor slot is suitable for daily Scissors sharpening. ② Coarse slot for grinding blunt knives. ③ Fine slot for daily sharpening and also for the preparation stage of grinding knives. ④ Exact-grinding slot for meticulous grinding and polishing.
  • [PREMIUM QUALITY & DURABLE]: Our manual knife sharpeners feature ABS plastic body and top-notch quality blade slots made from ceramic, tungsten steel and diamond grinding wheel. The knife sharpener has a longer service life, and also can fully withstand the pressure generated during sharpening.
  • [SAFE & COMPACT]: Designed with a non-slip silicone base at the bottom and ergonomic handle, this kitchen knife sharpener is not easy to slide for good grip when sharpening, safe and labor-saving. The compact design allows you to conveniently carry and store it which won't take up too much space in your kitchen.
KitchenIQ 50009 Edge Grip 2-Stage Knife Sharpener,...
  • KNIFE SHARPENER – KitchenIQ’s Edge Grip 2-stage sharpener features a carbide blade (coarse) sharpener for dull and damaged knives and a ceramic rod (fine) sharpener for polishing and quick touch-ups on already sharp knives.
  • EDGE GRIP – The patented “V” edge grip allows you to place the sharpener on the edge of your table or countertop to prevent the tip of larger knives from dragging over and damaging the surface of your counters or knife blades.
  • COMPACT – Quickly and easily sharpen your knives with this compact and easy-to-store sharpener; Kitchen IQ’s 2-stage knife sharpener can easily fit into your knife or utensil drawer and is perfect for anyone with limited storage or kitchen space.
SaleRANK NO. 8
SHARPAL 191H Pocket Kitchen Chef Knife Scissors...
  • 3-STAGE SHARPENING TOOL: Tungsten carbide blades for quick edge setting; Ceramic blades for fine honing; Special tungsten carbide blade for scissors sharpening. 3 parts to meet all your sharpening needs.
  • STRONG SUCTION BASE: The suction force of this product is twice that of other similar products. This increases your safety during the sharpening process.
  • EASY TO USE: You just need to put it on a smooth desktop and press the black switch. It will suck very strongly on the table. Then you can start to sharpen the knife. You don't need to hold it with your hands. So your hand is very safe.

Knife Sharpener Buyer Guide

The knife grinder is a job that has disappeared completely or almost completely, but the knives continue to be used and periodically they need to be sharpened.

Given the lack of professionals, there is nothing left to do but equip yourself and reinvigorate the edge of our knives by using a good knife sharpener.

Various Types of Sharpening

The use of this type of appliance is usually very simple as well as fast since in about a minute it is possible to perform the sharpening of the knife.

The various models offered by the best brands offer different options depending on the type of blade, its thickness, the material in which it is made, and it’s level of wear.

In the case of a knife with many cutting operations on the shoulders, for example, it is necessary to start from the first stage, which performs the roughing of the blade and then proceeds to the second, which ensures the real sharpening.

Finally, the third and final stage is the one that guarantees the finishing of the operation and returns a perfect blade. For newer knives, you can skip the roughing and start directly from the second stage.

In choosing the knife sharpener, therefore, it favors a model that allows you to select the phase from which you want to start the process so that it can be used with all types of blades, possibly including those of scissors, the tips of screwdrivers and so on.

In principle, the power of the motor is not an essential discriminant in the choice and you can find appliances from a minimum of 20 watts to a maximum of 70 watts.

Our advice is not to look for power at all costs but to calibrate the choice based on the number of knives to be sharpened and the frequency of use.

The Disks

Depending on the type of sharpening, this type of tool uses discs in different materials, more suitable for roughing, finishing, etc.

For example, there are those that integrate both discs and plates, others that have a grinding wheel, and others that are compatible with knives with serrated blades or made with particular steel.

Comparing the prices, the differences between the various models are determined precisely by the materials of the plates and grinding wheels, which can be ceramic, sapphire stone (cheaper), corundum, tungsten carbide, or diamond (more expensive).

The use of more expensive materials increases the effectiveness of the knife sharpener and its versatility but for non-professional use, you can get good results even with the cheaper models.


In the ranking of the aspects to be taken into account before choosing a knife sharpener, the dimensions are certainly not at the top but it is an aspect to consider, especially if you have a limited space to store it.

On the other hand, it is one of those objects that you will not always keep close at hand but that you will only use when needed.

In any case, there are really sharpeners of all sizes on the market: from the larger ones with different entrances to perform various levels of sharpening to the smaller ones, to even get to the portable ones, to always have on hand in case of need.

The expense for a product of this type, however, is justified only in the case of intense use of the knives, especially for your work.

Two levels of sharpening

The device allows you to perform very precise work and with appreciable results even on the most shabby knives. The first step is to rough the blade that needs to be put back into operation.

The operation is mechanized and the rotation of the grinding wheels takes place automatically. The device connects to the house current and works with precision and constancy to bring the blade back to a good level from which it can then obtain the perfectly sharp wire.

The second part of the work is done in the appropriate slot, here you work manually and act gently and precisely to avoid wearing out the blade too much. A knife that is sharpened too often and with little caution is likely to be damaged, sometimes just to get punctured.

Sturdy Wheels

The wheels used to operate the milling machines are inside the machine and cannot be seen. Yet they constitute the heart, the operating center capable of bringing to life new long-lived knives.

In this case, the grinding wheels present are of different grain depending on the type of work they have to carry out. But they are coated with a diamond to guarantee the necessary hardness and resistance to carry out their task.

The power of the machine is well proportioned to the type of work it has to do and therefore it is very intuitive to make good use of it and quickly become familiar with its operation.

How to Use a Knife Sharpener?

The Stages of Sharpening

A quick way to sharpen knives is to use an electric model. The results are more than appreciable and there is no effort to be made. Now, depending on the level of wear of the knife, you can proceed in stages.

Let’s imagine the case of a knife that has now completely lost its sharpening: roughing is carried out, after which you can move on to sharpening. It is not over because there is a final stage of finishing. In the case of new knives, the first stage can be skipped.

The inclination of the blade

Let’s imagine, instead, that we want to use a whetstone, which is a stone (but it can also be made with synthetic material) designed to perform this sharpening operation. The knife must be tilted according to an angle that should be identical to the original.

We are aware that it is almost never possible to know this data, therefore, the suggestion is to tilt the knife between 10 ° and 30 °. You can help yourself with a guide that serves to keep the angle of the blade constant.

The Lubrication of The Whetstone

If you use a water or oil whetstone, it must first be lubricated although the operation may not be necessary in the case of sharpening by hand because the speed and friction generated are not sufficient to overheat the stone excessively.

In general, the whetstone has a different grain on each side: this allows you to use one part for sharpening, the other for sharpening.

The Sharpening Steel

A blade can also be sharpened using steel, who knows how many times you have seen it used by your trusted butcher. It is important to know that steel is a tool for routine maintenance, in the sense that it is not suitable for very damaged knives.

It is important to support it correctly, that is, holding it with one hand by the handle and pushing it against a plane placed in a vertical position.

The blade should be placed at an angle close to 20 ° and slid along the steel. The procedure must also be repeated with the other side of the blade.

It is good practice to clean the blade with a cloth or absorbent paper so as to eliminate the metal residues produced by the sharpening.

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