Lawn mower drill sharpener. How to Sharpen a Lawn Mower Blade

How to Sharpen a Lawn Mower Blade

No matter what type of lawnmower you own, it’s important you keep that blade sharp. Otherwise, you risk yanking your lawn instead of slicing it cleanly and healthfully down to size. A sharp blade also keeps your mower running smoothly and shortens the amount of time you spend working on your lawn. The DIY experts at Stack Exchange offer a few tips on keeping your blade sharp, and doing so all by yourself.

Question:

Is it possible for a DIYer to sharpen the blade on his or her lawn mower? If so, how would I sharpen the blade on my lawn mower? It is a reasonably basic push mower but it does have a ‘mulching’ blade.

Answer: 10 Steps

1) Remove the blade by removing the nut that attaches it to the mower.

2) If there is any rust on the blade, remove it with steel wool or a steel brush.

3) Clamp the blade in a vice, or to the edge of a solid work surface.

4) Run a file down the cutting edge, following the same angle already on the blade.

5) If the blade is badly damaged, you will have to use a bench grinder or have it professionally sharpened.

6) Run the blade perpendicular to the grinding wheel to remove any nicks or gouges (this will give you a straight blunt edge).

7) Hold the blade at the proper angle (the angle already on the blade) and grind the length of the blade until it is sharp.

8) Balance the blade (from the center point) on a nail or on a Blade Balancer (~5) to check that the blade is balanced.

9) If the blade is not balanced, you will have to remove a bit of the material from the heavier side (Do not remove this material from the cutting edge).

10) Now that your blade is sharpened and balanced, reattach it to the mower.

Sharpening the blade more frequently will make the task quicker and easier, since you won’t have to grind as much to get a good edge.

If you do sharpen the blade using a power grinder, heat from the process can weaken the blade, so you’ll want to quench the blade to prevent overheating. Dip the blade in water frequently during the sharpening process to cool it, and wipe it dry before you continue grinding.

Safety Note: Remember Step 0

Make DAMN sure the lawnmower cannot start up while you are removing the blade. I have a relative who is missing a few fingers after he bump-started the motor while trying to remove the nut. Modern machines have better interlocks preventing this sort of thing, but pulling the spark plug and blocking the blade with something thick are also good precautions.

Answer: Keep in Mind.

If you have a workbench with a vice, sharpening a lawnmower blade is relatively easy. The other answers have already covered the basic techniques. I don’t own a bench grinder, but I have used a metal file, and a cordless drill with a grinder tip. Both methods worked pretty well for me. Rarely takes me more than 15-20 min (not counting removing and re-attaching the blade).

A few Комментарии и мнения владельцев not covered in the other answers:

Answer: The Quick Fix

Use coarse grit sandpaper to give your blade a quick sharpening. This doesn’t work for big nicks and dings, but does a decent job just cleaning up the edge.

Answer: Close might be Close Enough

There is certainly an optimal angle to sharpen your lawnmower blade, but close might be good enough. Use a dremel (or better yet, a dremel lawn mower sharpener attachment ) or even a file.

If you keep an edge on your blade, the mower will run considerably smoother. And the quicker the cut, the less stress on your lawn.

Do you know the secret to DIY sharpening a lawn mower? Submit your answer at Stack Exchange or leave it in the Комментарии и мнения владельцев. Stack Exchange is a place to trade expert knowledge on diverse topics from software programming to cycling to scientific skepticism. and plenty in between.

How to Sharpen a Lawn Mower Blade

You might think lawn mower blade sharpening requires tons of skill. While years of practice will hone your technique, the basic principles to sharpen a blade are rather simple. Our DIY instructions show you how to sharpen a lawn mower blade quickly so you can save money and keep your lawn looking great.

Why Sharpen a Lawn Mower Blade at All?

You may think a blade spinning at over 180 mph or more wouldn’t need to be terribly sharp to cut grass. You’d be right. However, a nice sharp blade will slice through grass and allow it to grow in a more healthy manner.

Why does this matter? Because “shredded” grass tips will quickly turn brown, leaving your lawn looking ragged and burnt. The following image helps illustrate this:

For professionals, and people who—quite frankly—just like a nice lawn, having sharp lawnmower blades truly matters for a professional look. This goes triple for species like Fescue which grow more or less straight out of the ground and require frequent cutting.

We know professionals who sharpen their zero turn mower blades every other day.

How to Decide Which Way to Sharpen a Lawn Mower Blade

Many ways exist to sharpen a lawnmower blade. Some of the easiest (and quickest) involve using a grinder. The blades don’t actually need to achieve razor sharpness—they just need to have a decisive cutting edge. It’s this edge that slices through, rather than chops, the grass at high speed.

Of course, grinders come in many sizes and forms. Angle grinders, bench grinders…you name it. If you have one of these tools already, then you may have everything you need to sharpen your lawn mower blades. If not, one of our other solutions might work out—so keep reading.

Aside from the use of a grinder, you can also grab a manual file and get to work. Dedicated blade sharpening systems exist that ensure the right angle and consistency when sharpening these heavy blades.

Regardless of which method you choose to sharpen your mower’s blades, we’ll start with the most common and work our way down.

How to Sharpen a Lawn Mower Blade Using an Angle Grinder

Using a small angle grinder to sharpen lawn mower blades lets you accomplish the task with minimal time investment or cost. You can pick up an angle grinder for very little money, and the process involves matching the angle of the existing blade edge and simply honing it.

Steps to sharpen a lawn mower blade with an angle grinder:

• Remove the lawn mower blade and place it in a vice
• Attach an abrasive wheel to the angle grinder
• Run the angle grinder back and forth along the blade, maintaining the existing angle of the blade
• Balance the blade to assure you removed equal material from both ends (see below)

How to Sharpen a Lawn Mower Blade Using a Bench Grinder

Similar to the process above, using a bench grinder to sharpen lawnmower blades works just as easily. A bench grinder reverses the process. Instead of moving the grinder over the blade—you move the blade across the grinder wheel. Since many bench grinders include an adjustable table, you can often get fantastic and consistent results using this method.

Try not to over-sharpen the blade. Doing so only results in a too-fragile edge that dulls more easily and weakens the blade. You also want to use quick passes to sharpen the blade. Be careful not to heat the steel too much. If you do, you may inadvertently weaken the hardening process that holds the blade’s edge.

Steps to sharpen a lawn mower blade with a bench grinder:

• Remove the lawn mower blade
• Set the angle of the grinder tool rest so that the blade angle matches up to the wheel
• Turn on the bench grinder
• Run the blade left and right along the grinder wheel, keeping the blade flat to the tool rest
• Balance the blade to assure you removed equal material from both ends (see below)

Use a Drill and Sharpening Wheel to Sharpen a Lawn Mower Blade

Another way to sharpen a lawn mower blade involves the use of a cordless drill and a special bit. You can find these in any number of shapes and sizes. These bits match the natural angle of the lawnmower blade.

Steps to sharpen a lawn mower blade with a drill accessory:

• Place the lawn mower blade in a vice
• Insert the bit into the drill
• Set the drill to High Speed
• Run the accessory along the sharpened portions of the blade to refresh the edge

One advantage of these types of sharpeners is that you can leave the blade on the mower. Depending on the type of blade and mower, you may get better results by removing the blade first. Still, it does provide a truly quick way to maintain your blade sharpness.

Balancing the Mower Blade

These methods are rather forgiving, however, you should take care to not miss an important step: periodically balancing the blade. After taking off some metal on either side of the blade and achieving a nice edge, you need to ensure the blade still balances evenly.

To do this, hammer a 16D or similar nail into a wall in your shed or shop and hang the blade from its center point. If it stays balanced, you’re all done. if not, mark the heavy side with a Sharpie marker and take some additional metal off that side by continuing to sharpen it. Most of the time, you can keep a blade balanced by staying aware of how many passes you make with a grinder. Still, periodically check the blade balance to ensure you haven’t drifted too far on one side or the other.

Regardless of which grinder method you use, balance the blade periodically to ensure it stays even.

Other Methods to Sharpen a Lawn Mower Blades

We don’t typically recommend the use of a file when sharpening your lawnmower blades. The process is slow and manual, and the results won’t get you a nicer lawn or a longer blade life. Instead, pick one of the grinder methods above and get to work. If, however, you enjoy using a hand file—by all means, go for it.

If you happen to sharpen mower blades regularly—enough to warrant a faster process—several commercial models do exist to save you time. A newly-created tool from Noracore called the Easy Mower Blade Sharpener (EMBSX) has particular promise. In fact, this tool won a 2019 Pro Tool Innovation Award.

This pneumatic tool drives a die grinder with both a mirror and a camera interface that lets you sharpen the blades on zero-turn mowers without removing them. It takes some finesse and skill to use, so it’s not for everyone. You also need to watch that you don’t sharpen one side more than another or you risk unbalancing the blades.

Some Considerations

No matter which method you choose to sharpen a lawnmower blade, please be careful to wear proper personal protective equipment (PPE) to protect your eyes, hands, and ears. Grinding mower blades takes little effort and we find it a great entry-level task almost anyone can handle. Still, taking proper safety precautions guards against accidents.

Let us know what you think in the Комментарии и мнения владельцев below. Do you have a preferred method for sharpening lawnmower blades? Which method works most consistently in your experience? We’d love to hear from you.

Clint DeBoer

When he’s not playing with the latest power tool, Clint DeBoer enjoys life as a husband, father, and avid reader—especially the Bible. He loves Jesus, has a degree in recording engineering, and has been involved in multimedia and/or online publishing in one form or another since 1992.

Clint’s career has covered nearly the entire realm of audio and video production. After graduating at the top of his class with an Associates Degree in Recording Engineering, he began working for the famed Soundelux studios in 1994, one of the largest post-production companies specializing in audio for feature films television. Working on a myriad of feature films, Clint honed his skills as a dialogue editor, foley editor, and sound designer. Years later, he moved into the expanding area of video editing, where he served as the company’s senior AVID video editor for three years.

Working for such clients as Universal Pictures, Hollywood Pictures, Paramount Home Entertainment, NASA, Universal Studios, Planet Hollywood, SEGA, NASCAR, and others, Clint DeBoer dealt extensively with client management as well as film video editing, color correction, and digital video MPEG compression. He also carries several THX certifications (Technician I and II, THX Video), and is ISF Level II Certified.

After founding the CD Media, Inc. publishing company in 1996, he went on to help start or grow several successful online publications, including Audioholics (as Editor-in-Chief for 12 years), Audiogurus, and AV Gadgets. In 2008, Clint founded Pro Tool Reviews followed by the landscape and outdoor power equipment-focused OPE Reviews in 2017. He also heads up the Pro Tool Innovation Awards, an annual awards program honoring innovative tools and accessories across the trades.

Crediting God and his excellent staff for the success of what is now the largest power tool review publication in the industry, Clint DeBoer hopes to see continued growth for the company as it rapidly expands its reach. Pro Tool Reviews critically reviews hundreds of hand tools, power tools, and accessories each year to help inform users about the best and newest products in the industry. Reaching everyone from the construction industry professional and tradesman to the serious DIYer, Pro Tool Reviews helps tool consumers shop better, work smarter, and stay aware of what tools and products can help put them at the top of their game.

How to Sharpen Lawn Mower Blades Without Removing (Easiest Way)

Maintaining a sharp blade on your lawn mower is extremely important for keeping your grass in the best condition it can be. Dull blades struggle to slice through grass and tear it instead. This results in yellowing, disease, pests, and an all-around unhealthy lawn.

The best way to sharpen lawn mower blades is to first remove them from the mower and take care of the sharpening and balancing at the same time. However, some property owners aren’t able to get their blades off. This could be due to missing tools, excess rust, or maybe just a lack of time. Whatever the reason might be, it begs the question of how to sharpen lawn mower blades without removing them. Let’s take a look at if this is possible, and if so, how exactly to go about doing it.

Can a Lawn Mower Blade Really Be Sharpened Without Removing It?

Yes, you can sharpen a lawn mower blade without removing it. I usually take my blade off to sharpen it, but if you want to hone yours while it’s attached to the mower you certainly can. Since sharpening your lawn mower’s blade while it’s bolted on requires a bit of a different approach to normal blade sharpening, I’ve listed the steps you should follow below.

Sharpening Lawn Mower Blades Without Removing Them (Step By Step)

Now that I’ve outlined the process, I want to dig into the details of how to sharpen push lawn mower blades without removing them. While this may seem like a complicated process, it’s actually pretty simple. Anybody can sharpen their own lawn mower blade with the right equipment, so follow along and let’s get it done.

Gather Equipment

Before we get into how to sharpen lawn mower blades without removing them, let’s talk about what you’ll need to get the job done. Luckily this project only requires a few things:

• Cut-resistant gloves.
• Eye protection.
• Wire brush, putty knife, prybar, or other scraper to clean off the mower’s deck and blade.
• One or two pieces of scrap wood/something to brace the mower.
• Steel file, angle grinder, or drill (with a grinding attachment).

Once you have your supplies together, set your mower up on your workbench or somewhere flat where you can kneel down and work on it.

Disconnect Power Supply

Now, before you go any further, make sure that you’ve disconnected the source of power to your lawn mower. On electric mowers, this means either removing the battery or making sure that the cord is unplugged. If you’ve got a gas mower, all you will need to do is remove the spark plug hood from the spark plug. Doing this ensures that your mower won’t start unexpectedly.

Tip Lawn Mower Over

Once you’ve got your mower where you want it, you’ll have to tip it onto its side so that you can access the blade. This step is actually very important. A lot of people don’t realize that there is a right and wrong way to tilt your mower.

The correct way to tip your mower over is to do so with the air filter and carburetor facing up. This makes sure that gas and oil won’t leak out of their reservoirs and into places they shouldn’t be.

Brace/Support Mower

With your mower flipped onto its side, you’re going to want to make sure that it doesn’t accidentally fall down. I like grabbing scrap 2×4 pieces of wood I have laying around and placing them diagonally against the mower, but anything goes as long as it can adequately support the machine. Lawn mowers usually won’t go anywhere once they’re on their side, but it’s always a good idea to set up a little extra support.

Clean Mower Deck and Blade

Use this opportunity to scrape off every bit of debris on the underside of your mower that you can. It’s best practice to regularly clean your mower’s deck and blade, but like flossing teeth, let’s be honest and acknowledge that a lot of us don’t do it enough.

You can use a wire brush or whatever blunt object you have on hand to scrape all of the dried dirt and grass off the deck and blade. For stubborn patches of gunk, using a little bit of water can help a lot. I usually tackle the deck first and then move on to cleaning the blade. This can be tricky with the blade fastened in place, but do the best you can to get it clean.

Block/Secure Blade

Once you’ve finished cleaning the blade, it’s a good idea to secure it in place so that it won’t move while you’re trying to put a new edge on it. If you have a specialized blade lock tool, great, but I think that the easiest way to go about securing your blade is with a set of locking pliers or a block of wood. You’ll either have to lock the pliers onto one edge of the mower deck to stop the blade from turning, or find a piece of scrap wood that is the right length and can be wedged between the blade and one side of the mower deck.

Some people just hold the blade with one hand while they sharpen it with the other, but this can be dangerous, especially if you’re using a drill or angle grinder. Also, it is a lot more difficult to hone your blade at the correct angle if you’re trying to do it with one hand.

Grind Blade

After doing all of the necessary prep, it’s time to actually hone your blade. There are a handful of options when it comes to what to use to sharpen your lawn mower’s blade, but I recommend using what you’re most comfortable with and have easy access to. Whatever tool you’re using, to sharpen your blade there are three big things you need to do:

Grind only the “top” side of the blade at a 45-degree angle.

Here, the top side of the blade refers to the side that faces the engine of the mower, not the ground. When grinding, you don’t need to be at exactly 45 degrees. You should be able to follow the existing angle on the blade so eyeball what seems about right and go slow and steady.

Go in one direction: from the center out to the end of the blade.

It’s really important that you file or grind smoothly in one direction. Start at the back of the blade (near the center where it’s mounted) and gently hone the edge as you push out towards the end. You don’t have to be an artist, but avoid any kind of sawing or back-and-forth motion.

Try to remove the same amount of material on both sides of the blade.

Since you won’t be removing the blade to check its balance, try to sharpen both sides of the blade evenly. While there’s no way of knowing exactly how much material you’re removing from each side of the blade, you will need to make a rough estimation. Just keep track of how many passes you do with your file or grinder and try to replicate it.

A Few Things to Be Aware Of

Now that you’ve got the main idea of how to sharpen lawn mower blades without removing them, I should mention a couple of things to be aware of. Though it’s a straightforward project, there are some things you should look out for before you get started, while working, and after you’ve finished.

Should the Blade be Sharpened or Replaced?

Sometimes there’s no need to sharpen your lawn mower’s blade because you’re actually due for a replacement. Lawn mower blades don’t have a specific lifespan, but generally, they should be swapped out every 2 or 3 seasons. The best way to tell if this is the case for you is to take a look at your blade. If the blade is bent, has large nicks/dents, or is suffering some serious rust damage, you should probably buy a new one. Knowing when to replace lawn mower blades can save you a ton of time.

Sharpen Blades When the Gas Tank is Empty

Maybe you don’t have much of a choice, but if you can, it’s best to do this project when you’re out of gas. Since your mower will be tilted on its side for quite a while, it helps to do this after you’ve run the gas out of your mower. This will prevent gas from leaking anywhere it shouldn’t be. Chances of leaks are slim, but try and prevent them if possible.

Watch for Excess Vibration

Once you’ve got your blade sharpened, and you’re out cutting grass again, be aware of how your mower is running. If there is more vibration to the mower than you remember, you might have shaved your blade a bit out of balance.

When you run your mower with an unbalanced blade, you could end up with poor cut quality and even cause structural damage to the mower. If you suspect your blade is out of balance, you may want to take it off the mower and check. Balancing lawn mower blades is a pretty easy process and could save you some trouble in the long run.

About Tom Greene

I’ve always had a keen interest in lawn care as long as I can remember. Friends used to call me the lawn mower guru (hence the site name), but I’m anything but. I just enjoy cutting my lawn and spending time outdoors. I also love the well-deserved doughnuts and coffee afterward!

Комментарии и мнения владельцев

Bad idea sharpening on mower. Anytime blades are sharpened they need to be balanced. Sharpening with a file is preferred because of heat buildup on the fine edge of the blade which removes the temper of the blade.

Hi Charles, I agree that sharpening a blade on a lawn mower isn’t the best idea, but if you can’t get it off, I wouldn’t recommend trashing the mower and buying a new one. I believe sharpening the blade still attached to the mower is a good alternative to replacing the mower. You’re certainly correct to say that a blade needs to be balanced, but I wouldn’t want to tell someone to trash a mower because they couldn’t balance the blade. When it comes to tempering, I’m definitely not an expert. I’m not sure I’d be concerned with a mower blade since it’s sharpened like a knife, and I’m not sure sharpening will heat the blade sufficiently enough to affect the actual heat-strengthening process. But I’m not an expert. Many Thanks, Tom.

Guru, your articles are great, and a real big help! Most.people want a quick easy fix. You gave those pointers. I followed to a T and my mower works great. Thanks!

How much torque should I expect to need to remove a tight blade bolt on a riding mower? The blade bolts on my Kubota have 30 mm heads. I am unable to remove them by hand using a breaker bar even. Were I to purchase a impact wrench, what torque level would you expect to be needed? Thanks.

The Best Mower Blade Sharpener To Buy in 2022 For A Great Lawn

This is our review of the best lawn mower blade sharpeners in 2023.

• The Top Lawn Mower Blade Sharpener Comparison
• The Best Lawn Mower Blade Sharpeners for Homeowners – Reviewed

• Best Overall Lawn Mower Blade Sharpener: All American Sharpener Model 5005
• Best Budget Lawnmower Blade Sharpener: AccuSharp Garden Tool Sharpener
• Best Sharpener For Manual Lawn Mower Blades: Smith’s 50603 Lawn Mower Blade Shop Essentials Sharpener
• Most Versatile Mower Blade Sharpener: SHARPAL 103N All-in-1 Knife Garden Tool Multi-Sharpener
• Best Electric Lawn Mower Blade Sharpener: Grizzly Lawn Gear Lawn Mower Blade Sharpener
• Best Professional Solution: Oregon 88-023 Professional 1/2 HP Lawnmower Blade Grinder
• Best Lawn Mower Blade Sharpener for Drills: Bosmere R305 Multi-Sharp Mower Sharpener
• Best Lawn Mower Sharpener Attachment Kit: Dremel A679-02 Sharpening Attachment Kit

• What to Look for in a Lawnmower Blade Sharpener

• Speed
• Power Type
• Usage
• Guide Material and Durability
• Compatibility
• Ease of Use
• Versatility
• Safety
• Price
• Warranty

• What are lawn mower blade sharpeners and what do they do?
• How do you use a blade sharpener?
• When should I sharpen my blades?
• How often should I sharpen my lawnmower blades?

Dull lawn mower blades can rip the grass, leaving jagged edges that weaken the plant and encourage fungal growth. The grass may also appear brown, yellow, and rugged. A dull blade will hurt your lawn.

For this reason, sharpening your lawn mower blades is essential. Lawn Mower blade sharpeners are very useful for this task. As a gardening enthusiast, I researched and worked with different sharpeners to find their efficiency until I came to the best lawn mower blade sharpener.

My overall best choice is the All American Sharpener. This sharpener features a pivoting head so you can sharpen both sections of the mulching blade. You can also sharpen straight standard and high-lift lawn mower blades.

If you have both right and left-hand blades, you don’t need separate sharpeners as it can handle them both. Additionally, its sharpening angles are adjustable, allowing you to sharpen different lawn mower blades to crisp edges.

Our best professional mower sharpener delivers the right speed and force for sharpening 6″ blades for professional landscapers. The Oregon 88-023 also comes with a reverse switch and height adjustment features.

If you’re on a budget, don’t worry. Our best budget mower blade sharpener is made from hard, rust-resistant material for durability and is affordable.

While the All American Sharpener is the best overall lawn mower blade sharpener, it is a little pricey for some and might not be the best for people on a budget. Additionally, it isn’t ideal if you’re looking for a drill attachment or a versatile sharpener.

However, we’ve created a guide for best sharpeners in specific situations and discussed them in detail below.

The Best Lawn Mower Blade Sharpeners for Homeowners – Reviewed

Best Overall Lawn Mower Blade Sharpener: All American Sharpener Model 5005

The All American Sharpener is our best choice for lawn mower sharpeners. It has a unique design of a vice head to hold the mower blade and an articulating arm that attaches the grinder. The arm also ensures the sharpening angle is proper every time.

It can sharpen mulching, standard, and high-lift blades. It features a pivoting head for sharpening both mulching blade’s sections at a proper angle. With this sharpener, you’ll be able to sharpen straight standard blades to perfection in a matter of minutes.

You can also adjust sharpening angles between 15° and 45°. Additionally, the blade can sharpen both right and left-hand blades.

The All American Sharpener 5005 comes with four pins. They screw into the threaded port and allow you to connect a 4½” angle grinder.

With this sharpener, you can sharpen multiple blades efficiently. Previously ground and used blades can come back to an almost new condition after using this sharpener.

And when you want to use it, you can easily mount it on any worktop – bolted or clamped. If you’re going to use it while you are out and about, you only need to attach the mounting bracket to a trailer or truck. It is completely portable as it comes with a cordless grinder.

However, it is expensive compared to some other less-featured sharpeners. But, if you have left and right-hand blades or mulching, high-lift, and standard blades, and you love perfection, this lawn mower blade is the best option for sharpening lawn mower blades.

Best Budget Lawnmower Blade Sharpener: AccuSharp Garden Tool Sharpener

If you are on a budget but still looking for a quality blade sharpener, the AccuSharp Garden Tool Sharpener might be what you’re looking for.

It is designed to sharpen all single-edged garden tools such as lawnmower blades, pruning shears, shovels, hoes, and limb loppers.

Made from diamond-honed tungsten carbide, it is hard, durable, and can handle almost any gardening blade you throw at it.

Its long-lasting construction is rust-resistant, and you can clean it easily with soap and water or in the dishwasher.

The sharpener features an ergonomic handle that can fit in either hand for both right and left-handed users. Additionally, it has a full-length guard to protect your fingers when sharpening.

The AccuSharp Sharpener will sharpen and restore your blades at an affordable price. It is an ideal choice for people looking for a decent lawn mower blade sharpener with a limited budget.

Best Sharpener For Manual Lawn Mower Blades: Smith’s 50603 Lawn Mower Blade Shop Essentials Sharpener

If you’re looking for an excellent residential lawn mower blade sharpener — not professional — you will appreciate Smith’s 50603 Lawn Mower Blade Sharpener.

This easy-to-use sharpener has a hard and long-lasting carbide blade. It will put a sharp and smooth edge on your blade in a few minutes and last for a long time.

It features a durable plastic head and an oversized handle so you can fit your hands with gloves. The large finger guard makes the sharpening process safe and secure.

The mower blade sharpener comes with a wire-bristle cleaning brush and storage on the product handle. After using it, you can easily clean and store it.

You’ll also be glad to know that the coarse, premium carbide blade is replaceable. This makes it cost-effective. Instead of buying another mower sharpener, replace the blade, and you’ll be good to go.

Are you looking for a birthday or Father’s day gift? This sharpener will make an excellent gift for the gardener in your life. It’s an excellent choice for homeowners enthusiastic about keeping their lawn neat without much hassle.

Most Versatile Mower Blade Sharpener: SHARPAL 103N All-in-1 Knife Garden Tool Multi-Sharpener

The SHARPAL 103N All-in-1 is the most versatile sharpener on this list. Apart from lawn mower blades, you can sharpen single and double-beveled blades like scissors, pruners, hedge shears, machetes, loopers, hatchets, among others.

It has five sharpening parts to accommodate blades of different angles, single or double bevel, shape, etc.

They include a tungsten carbide bar with a unique design, one ceramic bar, and three different slots with preset sharpening angles. These sharpening parts give the best sharpening performance to all the different blade types.

The sharpener is made from a durable abrasive sharpening material. They pass a 10,000 times field test and never wear out.

It has an oversized handle, so you can use it with gloves. The rubber-coated handle and base provide a comfortable grip and prevent slipping. Additionally, the large guard protects your hand and fingers from the blades.

This tool comes with a 3-year warranty. It’s perfect for people with lots of yard tools and prefers one sharpener for most if not all of them.

Best Electric Lawn Mower Blade Sharpener: Grizzly Lawn Gear Lawn Mower Blade Sharpener

While manual blade sharpeners are affordable, they require a lot of effort to sharpen. Electric ones sharpen your mower blade quickly and easily without requiring a lot of labor.

The Grizzly Lawn Gear lawn Mower Blade Sharpening tool is an electric mower blade sharpener with a drill attachment kit. It includes a free blade balancer and natural latex garden gloves to protect your hands against bruises.

Each drill attachment has a durable corundum stone that can sharpen blades of any size. The stone is 0.70″ thick, making it long-lasting.

The attachment can fit any hand or power drill, ensuring a crisp, sharp blade edge. You can also use it on your power mower blade. It’s not as powerful as a bench grinder, but will still do a fine job.

Made from premium nylon material, the precision sharpening guide can withstand repetitive force against the blade, thus preventing shattering.

The blade balancer makes sure the blades are balanced for even sharpening. For mower and tractor blades, the balancer fits all styles of blade holes.

You also get a lifetime warranty and money-back guarantee so you can shop risk-free. This electric blade sharpener is for people looking to upgrade from manual to electric or who want to sharpen faster with less effort.

Best Professional Solution: Oregon 88-023 Professional 1/2 HP Lawnmower Blade Grinder

For homeowners looking for a professional mower blade sharpener, you’ll love the Oregon 88-023 ½ HP blade grinder. It’s a ½ HP, standard duty, 750 RPM spinning speed motor blade grinder that can sharpen up to 6″ cutting edge.

Apart from an ON/OFF safety switch, it comes with a reversing switch for grinding right and left-hand blades.

It also includes an adjustable light for sharpening when it’s dark. Additionally, you can adjust the height easily and fast using the easy-to-turn rotary adjusting knobs and handle.

The grinder also features a grit collector to prevent the mess from spreading all over the working area. However, the grit collector is sold separately.

This sharpener is one of the most powerful electric grinders. It can be a perfect choice if you’re looking for a powerful sharpener for your 6″ mowing blades.

Also, if your yard usually grows hard weeds and grass that easily blunt your blades, you might need a more powerful sharpener to give your blades a crisp cutting edge. This is the tool for you.

Best Lawn Mower Blade Sharpener for Drills: Bosmere R305 Multi-Sharp Mower Sharpener

The Bosmere R305 mower sharpener is a drill attachment that fits any power drill and will sharpen your mower blades in minutes.

It features a reversible aluminum grinding wheel that offers you about ten resharpenings for your mower blade. The sharpener will also reshape your rotary mower blades in minutes.

It will also re-edge and reshape hoes, spades, and lawn edgers for more versatility, thus making it easier to use.

This mower sharpener can fit any domestic power grill and sharpen your blades. Sharp blades are safer to use, give a clean-cut, and leave your grass healthy.

It is for people looking for a cheap, easy-to-use drill attachment for their power drill. However, if you’re looking for one with premium features and lasts a lifetime, this is not your ideal choice.

Best Lawn Mower Sharpener Attachment Kit: Dremel A679-02 Sharpening Attachment Kit

The Dremel A679-02 sharpening kit helps keep your favorite gardening tools like mower blades and chainsaws sharp and ready for the next DIY project.

The kit includes a lawn mower sharpening attachment, a gardening tool sharpening attachment, a chainsaw sharpening attachment, two spacers, sharpening and grinding stones (453,454, 455,932), wrench, and gauge.

The three main attachments help sharpen even the dullest of mower blades and chains and provide optimum sharpening angles.

This sharpener is compatible with Dremel Rotary tool models 8100, 4300, 7760, 8220 (for use with collet and collet nut), and the 100, 200, 3000, and 4000 series.

These attachments are easy to install. You only need to screw them on your Dremel rotary tool. The kit comes with a 1-year warranty, and in case of anything, the manufacturer offers customer support through email, chat, or phone.

This sharpening attachment kit is ideal for someone looking for a mower blade and chainsaw sharpener. It can also sharpen other garden tools.

Lawn Mower Blade Sharpener Buying Guide

What to Look for in a Lawnmower Blade Sharpener

When buying a lawnmower blade sharpening tool, you need to consider these factors:

Speed

How fast will the grinder you’re considering sharpen your mower blades? How much time are you willing to invest to sharpen mower blades?

If it’s a manual one, it’ll most likely take more time to achieve your desired edge — anywhere from around thirty minutes to several hours.

On the other hand, electric grinders take less time, with others as less than a few minutes. Some are quicker than others. The speed depends on the RPM speed and the horsepower of the grinder.

However, the fastest is not always the best. Go for a sharpener whose speed is relative to the blade. Excessive speed can damage the blade by overheating, and you also risk injuring yourself.

Power Type

Do you prefer a manual or an electric sharpener for your mower blade?

Manual sharpeners are affordable but require a lot of effort. Electric ones are fast and do not require much labor. However, they are more expensive than manual sharpeners.

Usage

Your choice of sharpener can depend on your usage. Sharpeners range from hand-held blade sharpeners to heavy-duty angle grinding wheels and powerful motor grinders.

If you only need to bring back one compact mower blade, you don’t need a professional, industrial-style grinder. Also, if you’re a professional landscaper sharpening blades for commercial use, a cheap hand-held sharpener won’t cut it. You might also want to look for a professional solution that will allow you to sharpen multiple lawn mower blades.

Before purchasing, ensure you know how you’ll be using the tool and how often.

Guide Material and Durability

Blade sharpeners feature a guide that controls the angle of sharpening. This guide ensures the blade remains at the correct angle and does not shift while you sharpen the blade.

Most guides are made from plastic. However, if low-quality plastic is used, it can overheat, melt, and even produce smoke. Using too much force when sharpening can also melt the plastic.

Ensure the guide plastic is durable and cannot break or melt easily. You can also check online reviews of the brand you intend to buy.

Mulching blades can be a problem for some guides – if you have a mulching blade, make sure to check if your dull lawnmower blade can work in the guide you are buying.

Compatibility

While some sharpeners are grindstones and traditional blade files that can sharpen any blade type, others have compatibility issues. Pick the wrong one for your needs and you won’t have a sharp blade.

Some require fitting to power drills that generate the force needed. However, some drills are not compatible with some attachments.

If you buy a drill attachment sharpener, make sure it’s compatible with the drill you already got. Otherwise, it won’t work, and you’ll have wasted your money.

Ease of Use

You don’t want a sharpener that’ll make you curse all day because using it is rocket science. Worse still, it might damage your blades and potentially injure you.

While some sharpeners may look simple, they might be hard to use and may cause damage. For this reason, go for a sharpener that you’re comfortable using. If you don’t, you’ll rarely sharpen lawn mower blades.

Most sharpeners that attach to drill are easy to use. But, if you’ve got a different type, ensure you’re physically capable of handling it.

Also, is the sharpener made for right-handed people, left-handed, or both? Ensure you confirm before purchasing.

Versatility

While they are mostly labeled as lawn mower blade sharpeners, most are versatile and can sharpen different blades.

For gardening enthusiasts with a load of different blades, buying a sharpener for each blade type can be costly. It would be an excellent investment if you got one that can sharpen other blades.

However, you should be careful as the sharpener might be great at sharpening one blade but destroy the other.

For instance, a heavy-duty commercial sharpener might do an exceptional job with mower blades and other large ones, but it’ll destroy your thinner blades.

Also, some sharpeners can sharpen standard blades, mulched, high-lift, among others. Keep your sharpening needs in mind and decide whether the tool you’re considering is versatile enough and won’t damage your blades.

Safety

Blade sharpening can be a hobby for some people, but it’s also dangerous and prone to accidents if you’re not careful.

Does the sharpener you’re interested in have safety features? It should protect you from cuts, friction, and even sparks.

At the very least, a handheld sharpener should have finger guards. Your fingers are the most exposed and could suffer cuts and bruises. The best finger guards should be oversized so you can use them while wearing gloves.

For motor grinders, there can be sparks and metal filings. You will need eye protection which you will probably buy separately.

It is also recommended to use safety gloves every time and non-flammable clothing or a protective apron.

Price

Different sharpeners have different depending on the features they offer. A heavy-duty grinder will cost more than a handheld sharpener.

You should consider your budget and needs when buying a sharpener. If your budget is limited, you can opt to go for a cheaper sharpener then upgrade later.

Just ensure the sharpener you’re are buying is worth the price.

Warranty

Most manufacturers offer a warranty on their sharpening tools. The warranties, however, differ from tool to tool, depending on the manufacturer.

The warranty will give you peace of mind in case anything goes wrong. Still, some brands may not offer any warranty.

Additionally, consider the return policy of the sharpener. If there’s any fault, can you return it, or you’ll be stuck with a non-functional tool and lose your money?

Go for a sharpener with a warranty you’re comfortable with as well as a favorable return policy. Other brands offer risk-free shopping where you can get a refund if the tool doesn’t function as stated.

Frequently Asked Questions (FAQ):

What are lawn mower blade sharpeners and what do they do?

Lawn mower blade sharpeners are devices that are used to sharpen the blades of a lawn mower. The blades of a lawn mower can become dull over time, making it difficult for the mower to cut through grass. A sharpener will help to keep the blades in good condition and improve the performance of the mower. There are two types of sharpeners: manual and electronic. Manual sharpeners require the user to grind the blades against a grinding wheel or stone. Electronic sharpeners use a rotating abrasive wheel powered by a motor to sharpen the blades. Both types of sharpeners can be used to keep lawn mower blades in good condition.

How do you use a blade sharpener?

A mower blade sharpener is a tool that is used to sharpen the blades on a lawn mower. There are several different types of mower blade sharpeners available on the market, but they all work in essentially the same way. To use a mower blade sharpener, you will need to remove the mower blade from the lawn mower. Once the mower blade is removed, you will need to position the blade sharpener against the cutting edge of the blade. Next, you will need to apply pressure to the blade sharpener and move it across the cutting edge of the blade in a back-and-forth motion. Repeat this process until the entire cutting edge of the blade has been sharpened. Finally, reattach the mower blade to the lawn mower and test it out to make sure that it is properly sharpened.

When should I sharpen my blades?

Over time, mower blades will become dull and will need to be sharpened. There are a few things to look for to know when it is time to sharpen the blades. First, check the mower blade for nicks or chips. If there are any, then it is time to sharpen the blades. Second, if the mower is leaving grass clumps on the lawn, it is a potential sign that the blades need to be sharpened. It is possible you are cutting your grass at the wrong time as well. Lastly, if it takes longer than usual to mow the lawn, that may be an indication that the mower blades are dull and in need of sharpening.

There are a few different ways to sharpen lawn mower blades. One is to use a mower blade sharpener. This is a handheld tool that can be used to manually sharpen the mower blades. Another option is to take the mower blades to a professional who can use a power grinder to sharpen them. Regardless of which method you choose, it is important to keep the mower blades sharpened in order to have a healthy lawn.

How often should I sharpen my lawnmower blades?

lawn mower blade sharpeners are a great way to keep your lawn looking neat and tidy. But how often should you use them? The general rule of thumb is to sharpen your blades every six weeks or so. However, this will vary depending on how often you use your lawn mower and the type of grass you have. If you have a busy lawn with a lot of traffic, you may need to sharpen your blades more often. Conversely, if you have a lawn with slower-growing grass, you can probably get away with sharpening your blades less frequently. You should also keep an eye out for signs that your blades need to be sharpened, such as uneven cuts or damaged grass. By following these guidelines, you can keep your lawn looking its best all season long.

Our Verdict

A lawn mower sharpener should not only sharpen the blade but also make your work easier and efficient. Sharpeners come with different features to help you achieve your goal.

While all sharpeners in this guide are the best in their respective categories, the All American Sharpener Model 5005 is the best overall. Apart from sharpening straight standard, high-lift, and mulching mower blades, it can sharpen both right and left-hand blades.

That, plus other features like adjustable blade angles, mounting bracket, and cordless grinder for portability, and how easy it is to use the sharpener, makes it an overall excellent sharpener.

While it’s pricey, I think it’s worth every dollar. Don’t let grass overgrow in your yard because of blunt mower blades.

Click on the affiliate links above to proceed with purchasing the overall best sharpener or any other that fits your preferences and budget.

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