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Top 7 Best Lawn Mower Blade Sharpeners For 2024

If you want to reduce your mowing time, you will need to mow with sharp blades. The blades on the lawnmowers will get dull eventually, and you will only need to sharpen them once or twice per season. The secret to a healthy lawn is to mow using sharp mower blades.

To achieve that sharpness, you will need to use the best lawn mower blade sharpener. A cleanly cut grass will recover much faster and will also stay green. On the other hand, a dull blade will leave ragged tears and rip the grass blades.

This will not only promote grass disease but will also weaken the grass. Some lawns have a lot of debris, such as sticks or rocks. If you go over them, you will quickly lose the sharpness of your mower blades.

Depending on the condition of your blades, there are times when you have to replace them or simply sharpen them.

As for Lawn Mower Blade Sharpeners, you will find both manual and electric powered blade sharpeners. Also, make sure the sharpener and the blades are compatible.

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Best Lawn Mower Blade Sharpeners Reviews

Here are some lawn mower blade sharpeners that you can use to sharpen almost any type of mower blades. 

Best Lawn Mower Blade Sharpeners Review

1. Work Sharp Knife & Tool Sharpener

Work Sharp Knife & Tool Sharpener

Let us kick things off with an excellent product by the brand Work Sharp. With this accessory, you will be able to resharpen any of your blades, including that of a lawnmower quickly and easily.

Thanks to the precision sharpening guides in the unit, you will get a consistent result whenever you want to sharpen the blade. With your purchase, you will get three different abrasive belts, a coarse P80, a medium P220, and a fine one of 6000 grit.

One of the best features of the unit is that the abrasive belt is easily replaceable. As a result, you will be able to switch between different grits depending on the tool you want to sharpen.

Furthermore, the low price of the unit, along with excellent build quality, makes it a worthy investment. It is the perfect tool not only for your lawn mower but all other sharp tools, even including kitchen knives.


  • The abrasive belts are easily replaceable
  • Affordable price tag
  • Excellent build quality
  • Extremely versatile


  • No apparent cons

2. Smith’s 50603 Lawn Mower Blade Shop Essentials Sharpener

Smith's 50603 Lawn Mower Blade Shop Essentials Sharpener

If your sole purpose is to sharpen the blades of your lawn mower, then you might want to consider the 50603-blade sharpener by the brand Smith’s. It is a simple unit that comes at a very low cost making it an excellent choice for many people.

Unlike the previous unit we reviewed, this unit focuses only on lawn mower blades. This means you might not get the best results from it if you want to sharpen other tools like knives or drill bits.

However, this unit is one of the most user-friendly tools you will find for lawn mowers. It works fast, and within a few minutes, you will be able to sharpen the mower’s blade to perfection.

The head of the device features a carbide element that is both durable and contributes to sharpening the blade. Thanks to the large handle, you will face no difficulty in terms of ergonomics when using it.


  • Easy to use design
  • It comes at a very low price
  • Works fast
  • Ergonomic design


  • Not very versatile

3. Funvolution Universal for Any Power Drill/Hand Drill,Mower Blade Sharpener

Funvolution Universal for Any Power Drill/Hand Drill,Mower Blade Sharpener

If you are handy with tools, chances are you already have a couple of power drills in your arsenal. This unit by the brand Funvolution is an excellent choice as it requires you to have a power drill for it to work.

Basically, with your purchase, you get four stone grinders. You can attach these grinders to your drill and use them to get the mower blade sharpened. The thickness of the wheel is .78, which is much higher than that of other grinders.

The best thing about this design is its ease of use and quick action. Granted, you do require a power drill for it to work, but the time it requires to sharpen your lawn mower blade is fantastic.

Another benefit of the tool is since it comes as a pack of four, you do not need to carry them all at once. Because of the small nature of the grinders, you can just keep one on you so that you can sharpen the mower blade once it turns dull.


  • Extremely simple design
  • Attaches easily and quickly to almost any power drill
  • Fast and efficient sharpening
  • Thick grinding blades allow for better performance


  • Requires you to own or buy a power drill separately

4. Grizzly Lawn Gear Lawn Mower Blade Sharpener

Next up, we will be looking at a similar lawn mower blade sharpening accessory by the brand Grizzly Lawn Gear. This one comes in a pack of three and will offer plenty of value in keeping your mower blade sharp and functional.

The sharpening bits in the unit are easy to install and attach to your power drill within seconds. As a result, you will not have to fiddle around with the drill machine and can sharpen your blade quickly and effortlessly.

In fact, the manufacturer claims that these bits can sharpen your blade within 10 minutes. This means you do not need to spend hours grinding the blades to get them sharp again and can start mowing your lawn without any delay.

Another added bonus to this unit is the free accessories that come with it. You get a pair of garden gloves and a blade balancer that allows you to check the sharpness of the blade once you are done with it.


  • Easy to install
  • It comes in a pack of three
  • Fast and efficient sharpening
  • Includes a few handy accessories


  • No apparent cons

5. Bssay 4 Pack Lawn Mower Blade Sharpener

Bssay 4 Pack Lawn Mower Blade Sharpener

If you like the design and efficiency of blade sharpening drill bits, then this option by the brand Bssay might be an excellent option for you to consider. With your purchase, you get four sharpening bits, which already offers a lot of value.

In addition, the bits are made of corundum. For those that do not know, this material offers excellent performance when used for sharpening blades. It is also quite durable and will give you reliable sharpening for a long period.

Furthermore, the thickness of the grinding wheel in each of the bits is around .79 inches. This ensures you get quicker sharpening and can get the blade back to your mower to start your chores without much hassle.

As long as you have a proper drill machine, installing it is extremely easy. It goes in without a fuss and works perfectly. The measurement of each of the bits is 1.97 X 2.2 inches, which offers razor-like sharpness easily.


  • Thick grinding wheels offer better sharpening.
  • Excellent material choice
  • It comes in a pack of four
  • Easy to install


  • A bit more expensive but worth the investment.

6. ZALALOVA 5Pcs Lawn Mower Blade Sharpener

For our next option, we will be looking at a fine selection by the brand Zalalova. This five-piece drill bit blade sharpener for a lawn mower is an excellent choice for people who want the best sharpening for their mower.

Since it comes as a pack of five, it already offers a better value than most other options available in the market. You will be able to use the bits to keep your mower functional for a long time.

Similar to the previous option, all of the grinding wheels in this pack comes with a corundum construction. As a result, you will have nothing to worry about in terms of sharpening efficiency and durability.

Installing the bits is also easy. Surprisingly, the bits are quite lightweight, which means you will have an easy time using them for sharpening. Using this tool regularly will keep your lawn mower performing at its peak condition for a long time.


  • It comes as a pack of five
  • Easy to install
  • High-quality corundum used in its construction
  • Lightweight and efficient sharpening


  • No apparent cons

7. XRS Lawn Mower Blade Sharpener, Lawnmower Blade Sharpener

To finish things off, we will be looking at a fine offering by the brand XRS. This is the perfect choice for people who have little experience with sharpening the blade and want to try it out for the first time because of its absurdly low price.

The set features three blade sharpening bits for your power drill. Each of the bits is designed to fit in any power drill effortlessly to save you from the hassle of buying a separate, specific unit.

Because of the corundum construction, the grinding wheels will offer peak sharpening performance for a long period. Once you are done with your blade, you will notice a drastic increase in the performance of your lawn mower.

For people who want to take the first steps into the world of sharpening their own tools, this is the best choice out there. It is cheap, easy to use, and will offer peak sharpening with little to no hassle on your part.


  • Excellent sharpening in a short period
  • A highly affordable price
  • Corundum used in its construction
  • Easy to use


  • It only comes with three bits
Best Lawn Mower Blade Sharpeners Buying Guide

Things to Consider Before Buying the Best Lawn Mower Blade Sharpeners

If you want to keep your lawn healthy and beautiful, you need to mow it regularly with a sharp blade. A dull blade can damage the grass, cause uneven cuts, and make your mowing more difficult and time-consuming. That’s why you need a lawn mower blade sharpener to restore the edge of your blade and make it cut like new.

But how do you choose the best lawn mower blade sharpener for your needs?

There are many factors to consider, such as the type, speed, compatibility, versatility, ease of use, and safety of the sharpener.

In this blog post, we will explain these factors in detail and help you make an informed decision.

Type and Speed

There are three main types of lawn mower blade sharpeners: manual, drill-powered, and grinder-powered. Each type has its own advantages and disadvantages, depending on your preferences and budget.

The Manual Powered Sharpeners

Manual sharpeners are the simplest and cheapest option. They usually consist of a file, a stone, or a device that you drag across the blade to sharpen it. Manual sharpeners are easy to use and portable, but they also require more time, effort, and skill to achieve a good result.

The Drill Powered Sharpeners

Drill-powered sharpeners are attachments that fit into your drill and spin a grinding wheel or stone at high speed. You hold the sharpener against the blade and move it along the edge to sharpen it.

Drill-powered sharpeners are faster and more convenient than manual ones, but they also require more power and care to avoid overheating or damaging the blade.

Grinder Powered Sharpeners

Grinder-powered sharpeners are devices that attach to your bench grinder or angle grinder and hold the blade in a fixed position while you grind it.

Grinder-powered sharpeners are the fastest and most efficient option, but they also require more space, money, and expertise to use safely and properly.

The power source of your sharpener

There are two main types of power sources for sharpeners: electric and manual. Electric sharpeners are faster and easier to use, but they require an outlet or a battery. Manual sharpeners are cheaper and more portable, but they require more effort and time.

You should consider your budget, convenience, and preference when choosing a power source.

The features and accessories of your sharpener

Some sharpeners come with extra features and accessories that can enhance your sharpening experience.

For example, some sharpeners have a built-in guide that helps you align your blade correctly. Some sharpeners have a safety guard that protects your fingers from the blade.

Some sharpeners have a storage case that makes them easy to carry and store. You should look for a sharpener that has the features and accessories that suit your needs.

Final Words

The professional blade sharpeners will allow you to set your desired angle so that you can properly sharpen your mower blades. Most people think all mower blades are 30-degrees, but that’s not the case. You need to measure the angle properly and use the right lawnmower blade tool to grind the blades.

The whole process becomes much easier when you use the best lawn mower blade sharpener. This way, you can keep on using the same blade year after year. Make sure to measure the factory angle of the blade and grind it accordingly. 

You know you may have the best self-propelled lawn mower with mulcher but you cannot get the best service from it if its blade is dull. On the other hand, you may have an inexpensive lawn mower but you maintain the sharpness of its blade, then the second one is better than the first one.

On a side note, with versatile blade sharpeners like the ones mentioned above, you can actually sharpen multiple different angles of blades with ease. A quick tip: always sharpen going up and never sharpen coming down.

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