7 Best Grit for Sharpening Lawn Mower Blades

You have been using your lawn mower for an extended period. Now, the blades of your lawn mower machine lose their adequate sharpness. At the moment, the thing you mostly require is to sharpen your lawn mower blades. But you are too busy to take the blade to any workshop.  

Probably, you are looking for any method of sharpening the lawn mower blades at home. But it is pretty apparent that everyone may not have an angle grinder or benchtop grinder at home to sharpen the blades. Moreover, the angle grinder or bench top grinder comes with an unnecessary cost for you if you are not a professional who works with steel material.

In such a situation, the best thing you can do is buy a good quality grit to sharpen your lawn mower blades by yourself because grit comes in an affordable range. So, now it is quite probable that you are thinking about buying the best grit for sharpening lawn mower blades. 

This article has shown a few best grits by which you can sharpen your lawn mower blades. This article is organized in a very convenient manner which is very easy to skim through.

Comparison Chart of 7 Best Grit for Sharpening Lawn Mower Blades

Name of Grit or SharpenerWeight (Pound)Why is this best?
1. SHARPAL 121N Dual-Grit Diamond Sharpening Stone File Tool Sharpener0.38Affordable, can be carried anywhere, and coated with durable monocrystalline diamonds coated
2. Oregon 88-025 Blade Sharpener & Grinder42.11/3 hp motor grinder machine, generates 1750 rpm, outstanding sharpening, shaping, polishing performance
3. SHARPAL 181N Dual-Grit Diamond Sharpening Stone File0.36Affordable, electroplated with monocrystalline diamonds coated, portable
4. All American blade Sharpener for Straight and Standard Lawn Mower Blades, Model (5005, Black)4.82Made of high-quality iron material, adjustable angular arm setting from 15° to 45°
5. Crafts Man 5 Packs Hand Prill Powered Lawn Mower Blade Sharpener0.8Comes in a set of 5 pieces, made of corundum material, durable
6. All American Lawn Mower and Mulching Blade Sharpener (Model 5000)4.79Two angular arm settings, 15° & 30°, can be mounted on any surface
7. SHARPAL 103N All-in-1 Multi Sharpener0.3Affordable, multifunctional, can sharpen various types of blades

Best Metal Cutting

SHARPAL 121N Dual-Grit Diamond Sharpening Stone File Tool Sharpener

I chose this product as one of the best grits for performing sharpening tasks. It is pretty affordable, coated with durable and hard monocrystalline diamond coating. Its dual grinding surface is perfect for sharpening knives, axes, hatchets, lawn mower blades, garden shears, chisels, spades, drills, and all blade edges.

Product Specifications and Descriptions

  • The Manufacturer is Sharpal.
  • The Weight Distribution of the grit is only 0.38 pounds.
  • The Dimension of the grit is ‎8.46 “L x 1.38 “W x 0.67 “H

Key Features

  • The grit is monocrystalline diamonds coated and full tang stainless steel. This monocrystalline diamond coating provides durability to the grit. Moreover, the coating makes the grit quite hard and solid.
  • This grit is capable of sharpening any metal almost like new.
  • This grit has 2 grinding surfaces to perform different types of grinding purposes.
  • One of the two grit surfaces is coarse 325 grit (45 microns). This surface is advantageous for quick edge setting.
  • Another surface is an extra fine 1200 grit (9 microns). This surface is adequate for honing the metal edges.
  • This grit requires no oil while sharpening any metal edge.
  • This grit quality is of the highest standard.
  • The grip of this grit is ergonomically designed. Because of its unique design, it minimizes physical effort and discomfort. Besides, it maximizes the efficiency of work.  
  • The manufacturer provides 3 years of warranty as an after-sale service.

My Opinion

In my opinion, it is the perfect choice for both professionals and those who are sharpening metal at home. Besides, this comfortable grip design can provide maximum efficiency in sharpening with less physical effort.

Best Metal cutting

Oregon 88-025 Blade Sharpener & Grinder

I chose this product as one of the best for sharpening lawn mower blades because the grit wheel of this grinder machine is appropriate for this job. More than that, its 1/3 hp powered induction motor, maximum of 1750 rpm, can perform the sharpening, shaping, polishing, and grading job with excellent precision and efficiency.

Product Specifications and Descriptions

  • The Manufacturer is Oregon.
  • The Weight Distribution of the grinder is 42.1 pounds. 
  • The Dimension of the grinder is ‎18.8 x 14.8 x 21 inches
  • The Grinder Wheel Diameter is 8-inch
  • The Voltage requirement of the motor of this bench grinder machine is 115 volts.
  • The Motor’s Power is 6.5 amp (1/3 hp).   

Key Features

  • The 1/3 hp motor generates 1750 rotations per minute. With the vast 1750 rpm generated by the 1/2 hp motor, tasks like deburring ragged edges, grinding, or sharpening blades become easy to perform. The outcomes come very smooth and precise.
  • This grinder grit machine has a safety switch. It makes the grinder machine a safer option for the users.  
  • The grinder machine doesn’t have any built-in mounted light.
  • The rotation direction of the grinder wheel is only one direction. The wheel rotation can’t be rotated in reverse.
  • The height of the wheel is adjustable. Users can adjust the height of the wheel according to the task requirement.
  • This grinder has metal wheel guards, providing the user safety and protection during grinding.
  • But this grinder machine is quite expensive compared to other grinder machines on the market.

My opinion

In my opinion, it is an appropriate choice for professionals to carry out jobs like cleaning, sharpening, buffing, removing rust, or removing burs from metal. On top of that, it performs outstandingly in terms of sharpening lawn mower machines.

Best Metal cutting

SHARPAL 181N Dual-Grit Diamond Sharpening Stone File

I chose this product as one of the best grits because of its excellent efficiency in sharpening metal edges. The price range is quite affordable. Grit is electroplated with industrial monocrystalline diamond coating, durable and rugged. Its dual grinding surface makes it suitable for sharpening knives, axes, hatchets, lawn mower blades, garden shears, chisels, spades, drills, and all blade edges.

Product Specifications and Descriptions

  • The Manufacturer is Sharpal.
  • The Weight Distribution of the grit is only 0.36 pounds. 
  • The Dimension of the grit is ‎ 12.17 “L x 5.71 “W x 0.67 “H.

Key Features

  • Industrial monocrystalline diamond coating is electroplated on the stainless-steel base of this grit. This coating makes the grit comparatively fast, durable, and hard.
  • This grit sharpens the metal up to 5 times faster than any oil stone or water stone.
  • This grit is a multifunctional sharpener. It can sharpen any metal and hon any hard material like knives, axes, hatchets, machetes, lawn mower blades, spades, drills, chisels, shears, carbide, high-speed steel, titanium, ceramics, and most super hard material, etc.
  • This grit requires no oil while sharpening any metal edge.
  • This grit has 2 grinding surfaces to perform different types of grinding purposes.
  • One of the two grit surfaces is coarse 325 grit (45 microns). This surface is advantageous for sharpening damaged and dull metal edges.
  • Another surface is an extra fine 1200 grit (9 microns). This surface is adequate for honing the metal edges.
  • This grit has a leather sheath cover to protect the stainless-steel side of the grit from any external damage.  
  • This grit is adequate to provide any metal with a polished finish on edges like razor-sharp.
  • The manufacturer provides 3 years of warranty as after-sale service.

My Opinion

In my opinion, it is an excellent choice for both professionals and those who are sharpening metal at home. Besides, it can give a razor-sharp sharpness to any metal edges. More than that, it requires less effort in sharpening.

Best Metal cutting

All American blade Sharpener for Straight and Standard Lawn Mower Blades, Model (5005, Black)

I chose this product as one of the best blade sharpeners because of its outstanding support and angular accuracy in sharpening metal edges. It has an angularly adjustable arm range from 15° to 45°, allowing the user to set the blade at his preferred angle. Moreover, this sharpener is made of high-quality iron materials.

Product Specifications and Descriptions

  • The Manufacturer is An American Sharpener.
  • The Weight Distribution of the sharpener is only 4.82 pounds. 
  • The Dimension of this sharpener is ‎14.06 x 10.04 x 3.07 inches.

Key Features

  • The design of this sharpener is suitable for sharpening or grinding from a minimum of 7 cm long blades to a maximum of 14 cm long blades.
  • Four adapter pins are included with the sharpener. These pins enable the user to hold the blade straight in the frame.
  • This sharpener has a good design which enables angular adjustability for the holding arm of the sharpener. The adjustable angle ranges from 15° to 45°. This angular adjustability allows the user to grind the blade at the user’s desired angle.
  • After adjusting the blade with the sharpener frame at the desired angle, the blade is sharpened with an angle grinder.
  • The crank arm is connected with the ball bearing to avoid any unintentional angular change.   
  • The sharpener is made of high-quality iron material, which is durable and stable.
  • This sharpener is cordless; that is why this sharpener can be carried anywhere according to the need of the angle grinder.
  • The vice head design of the sharpener allows the articulating arm to hold the mower blade and attach the grinder. This system holds the blades securely to sharpen the mulching blades’ edge perfectly.
  • The manufacturer provides 2 years of quality assurance. Besides this, the company also provides services like free return and exchange.

My Opinion

In my opinion, it is an excellent choice for both professionals and those who are sharpening metal at home. It provides better support and accurate positioning to the blades when grinding.

Best Metal cutting

Crafts Man 5 Packs Hand Prill Powered Lawn Mower Blade Sharpener

I chose this sharpener package as one of the best blade sharpeners because of its high-quality corundum material. These sharpeners are durable and strong. More than that, these are perfect for sharpening or grinding lawn mower blades, drill blades, sickle bar cutters, and rototillers.

Product Specifications and Descriptions

  • The Manufacturer is Crafts Man.
  • The Weight Distribution of the sharpener package is only 0.8 pounds. 
  • The Dimension of this package is ‎ 5.12 x 3.35 x 2.83 inches.

Key Features

  • This lawn mower sharpener set comes with 5 pieces of a set.  
  • It is almost like a rotating sharpener which has to be set at the drill machine to prepare it like a rotating functional blade sharpener.
  • Each of the pieces is made of corundum. It is a high-quality material. It makes the sharpener strong, durable, and hard. Corundum material also provides longevity to these sharpener pieces. 
  • Sizes of each sharpener is 50 x 47 mm / 1.97 x 1.85 inch.
  • These sharpeners have a variety of sharpening applications. These are especially suitable for sharpening lawn mower blades, drill blades, sickle bar cutters, rototillers, etc.

My Opinion

In my opinion, it is an excellent choice for both professionals and beginners. It is especially beneficial for those who want to sharpen blades at home. A hand drill powers these sharpeners; that is why it requires minimal physical effort to sharpen any metal blades.

Best Metal cutting

All American Lawn Mower and Mulching Blade Sharpener (Model 5000)

I chose this product as one of the best blade sharpeners because its two angular settings help the user sharpen blades at 15 degrees and 30-degree-angle, specially designed for sharpening lawn mower and mulching blades. On top of that, it can be set and mounted on any surface, making it portable and suitable for outdoor sharpening.  

Product Specifications and Descriptions

  • The Manufacturer is An American Sharpener.
  • The Weight Distribution of the sharpener is only 4.79 pounds. 
  • The Dimension of this sharpener is ‎14 x 10 x 4 inches.

Key Features

  • This sharpener has two angle settings. One 30-degree and another one is 15-degree. These specific angles are advantageous for sharpening mulching blades and particular types of lawn mower blades.
  • A 24-grit to 50 grit flapped wheel is suitable for grinding and sharpening in this sharpening frame.
  • After adjusting the blade with the sharpener frame at the desired angle, the blade is sharpened with an angle grinder.
  • This sharpener makes sharpening any blade easy and comfortable once the sharpener is set up correctly.
  • This sharpener is very easy to set up and use.
  • This sharpener can be mounted on almost every surface with bolts or clamps. Again, it can easily be removed from the mounting bracket.
  • Again, this mounting bracket can be attached to a truck or trailer, if needed, to perform outdoor sharpening.
  • The pivoting head of this sharpener is for sharpening mulching blades.
  • Pivoting head helps the user to sharper both sides of the mulching blade at the user’s desired angle.
  • This sharpener is cordless; that is why this sharpener can be carried anywhere according to the need of the angle grinder.
  • The vice head design of the sharpener allows the articulating arm to hold the mower blade and attach the grinder. This system keeps the blades securely to sharpen the mulching blades’ edge perfectly.

My Opinion

In my opinion, it is an excellent choice for both professionals and those who are sharpening metal at home. It is best for its easy set feature and convenient usability. It also provides better support and accurate positioning to the blades when grinding.

Best Metal cutting

SHARPAL 103N All-in-1 Multi Sharpener

I chose this product as one of the best sharpeners because it can sharpen almost every type of blade. More than that, it comes in a very affordable price range. It shows excellent effectiveness in sharpening, making the metal edges almost like new, suitable for sharpening lawn mower blades, axes, hatchets, machetes, pruner, hedge shears, scissors, etc.

Product Specifications and Descriptions

  • The Manufacturer is Sharpal.
  • The Weight Distribution of the grit is only 0.3 pounds. 
  • The Dimension of the grit is 8.5″L x 3″W x 1.34″H

Key Features

  • This sharpener is one of the most versatile sharpeners on the market. It can sharpen and hone single and double-beveled blades, including the knife, mower blade, pruner, loppers, hedge shears, axe, machete, hatchet, scissors, edged tool, etc.
  • Though different blades have different sharpening angles, shapes, and bevel angles, this sharpener is best for providing superb sharpening performance. This sharpener is suitable almost for every sharpening and bevel angle.
  • This sharpener has 5 sharpening slots for different kinds of blades, including 3 different slots with preset optimal sharpening angles. One of them is a specially designed tungsten carbide bar and one ceramic bar. This feature enables the user to sharper many types of metal blades.
  • All the Sharpal 103N sharpeners have to pass 10000 times of field use tests before they come into the market. That is why every Sharpal 103N sharpener is durable, robust, and has high longevity.
  • The orange-colored rubber-molded handle base gives the user a better, comfortable, and secure grip.
  • The frame of this sharpener is built in such a way it protects the user’s hand from getting hurt.
  • . It gives these blades sharpness, almost like new.
  • The manufacturer provides 3 years of warranty as an after-sale service.

My Opinion

In my opinion, it is an excellent choice for both professionals and those who are sharpening metal at home and outdoor. Besides, it is highly recommended because of its versatile usability almost in every blade type. More than that, the human-friendly structure of this sharpener needs minimal physical effort to sharpen any metal blade.

Buying Guide: Factors you must keep consider before buying a grit or sharpener

If you want that your grit or sharpener comes out as the best grit for sharpening lawn mower blades, then there are several factors you must keep in your mind before purchasing. These factors are also called determining factors that will help you purchase the best one according to your need.

Factors you must keep consider before buying a grit or sharpener
Factors you must keep consider before buying a grit or sharpener

Nature of the Need

A few types of sharpeners are available in the market, such as hand grit, bench top grinder, angle grinder, etc. First, you have to determine which types of blades you need to sharpen. If you are a professional in the steel shaping sector, we suggest you buy a good quality electric powered bench top grinder and angle grinder. Professionals often need to deal with heavy-duty and large-scale steel work.

On the other hand, if you are not a professional and need a sharpener to sharpen small steel tools like knives, axes, chisels, and scissors, then we suggest you buy hand grit, which is not electrical. Suppose you buy an electrical bench top grinder or angle grinder for performing small-scale sharpening. In that case, those grinders will require an entirely unnecessary maintenance cost.

Cost

It is one of the most crucial factors before purchasing a grit or sharpener. This factor is connected with the previous “nature of the need.” As previously said, if you need to perform a small-scale sharpening job, you must buy hand grit. A good quality grit will cost 10 USD to 60 USD.

If you want to for bench top grinder, then your budget must be a maximum of 200 USD. You can acquire a good quality bench top grinder in this price range.

If you want to buy an angle grinder, we suggest you set your budget range maximum of 180 USD. In this price range, you can purchase a good angle grinder.

So, before you purchase grit or grinder for sharpening, you must first consider your nature of the need for the work. Otherwise, your decision may turn out as an unnecessary cost.

Size

Size also plays a vital role in determining the best grit or sharpener. But this factor is only for professionals. If your sharpening job requires you to travel several places and perform a sharpening job, then you must choose an angle grinder. You can deal with small-sized and medium-sized sharpening jobs. Even in many cases, you can deal with heavy-duty tasks with an angle grinder.

On the other hand, if you perform a sharpening job in your workshop, you must not be worried about the size. You can buy a bench top grinder in this regard. 

Another essential thing to remember is that if you travel anywhere, you may often be required to sharpen your knives, cutters, and scissors. In this aspect, we suggest you carry a hand grit with you.

Physical Effort & Time

It requires more physical effort and time in grit for sharpening any metal than the electrical bench top grinder or angle grinder. You will get an industrial-level sharpness and polishing by an electrical grinder with less physical effort because the rotating wheel of the grinder does the maximum portion of the job for you in case of grinding.

But on the opposite, while you are sharpening anything with grit, you have to perform that rotation job by your physical effort. Besides, it will also take more time than grinding. Furthermore, the precision and accuracy are far better in the grinding process than in sharpening by grit.   

Frequently Asked Questions

What is the best grinding wheel for sharpening mower blades?

If anyone asks which grinding wheel is the best for sharpening lawn mower blades, the answer is Aluminum oxide wheels. It is the best because they are ideal for many materials, including stainless steel, tool steel, and bronze and aluminum alloys.
The aluminum oxide wheel also produces less heat than the other materials’ wheel. Moreover, aluminum oxide wheels have better durability. It is a good feature for sharping any metal.

How do I make my lawn mower blades the sharpest?

After a certain amount of time of using the lawnmower, the blade will become dull. It requires frequent sharpening because it is prone to losing its edge. There are a few products available on the market that can bring back the sharpness and cutting ability of the blade on your lawn mower. A few examples of such pieces of machinery include grit, an angle grinder, and a bench top grinder.

How sharp do lawn mower blades need to be?

Home and garden decorating experts answered this question that the sharpness of a lawn mower blade needs to be sharp like a butter knife. And the required angle of sharped edges of the blade needs to be about 30 degrees. It is not necessary to sharpen the mower blade like a razor blade.
So, in one phrase, the sharpness of a lawn mower blade needs to be “butter-knife sharp, not razor sharp.”   
 

What is the best way to sharpen a lawn mower blade?

The best way to sharpen a lawn mower blade is to sharpen the blade with an angle grinder. An angle grinder machine is recommended to sharpen the lawn mower blade in the home. Because of the angle grinder’s easy maneuverability, it becomes handy to sharpen the lawn mowers blade.
But bench top grinder is also a good option after the angle grinder machine. It is also as effective as an angle grinder machine to sharpen metal objects. Sometimes, a bench top grinder machine performs better than an angle grinding machine. 

How long does a lawn mower blade last?

Most lawnmower blades have a lifespan that ranges anywhere from 100 to 200 hours when subjected to typical conditions. If you use blades of a high grade, you have the possibility of getting up to 400 hours of use out of each one. A grinder or a mechanical file can be used to sharpen dull blades, but each blade’s sharpening is only effective for two to three uses before it needs to be sharpened again.

How is a grinding wheel specified?

A standardized marking system specifies and identifies grinding wheels according to their characteristics. Such as, the number “46” refers to the standard grit size, expressed in inches of mesh. When referring to very coarse grit, this number could be as low as 6, but when referring to excellent grit, the designated number could be as high as 600. A wide range of sizes is available for grits, ranging from very coarse to very fine.

What tools do I need to sharpen a lawn mower blade?

You can sharpen your lawn mower blades using a few tools, such as an angle grinder, bench top grinder, or grit. All of the mentioned tools offer effective performance in sharpening lawn mower blades. If you are adequately aware of the operations of bench top grinder, angle grinder, or grit, you can sharpen your lawn mower machine by yourself at home.

How often do mower blades need to be sharpened?

According to the opinion of the experts, the lawn mower blade must be sharpened every 20 to 25 hours of use on average. After almost 20 to 25 hours of use of the lawn mower, the blade loses its sharpness to cut sharply. That is why this hour range recommended by the experts

Final Insight

Whether or not one uses a grit or sharpener depends on the specific job at hand and the user’s experience level. Choosing the correct grit and sharpener is a matter of personal preference. As a result, the preferences of individuals vary concerning the type of metal being worked on and the specifics of each job.

But if you were looking for the best grit for sharpening lawn mower blades, I think you’ve already made your mind up after reading the review.

This article has discussed seven different grits and sharpeners for sharpening lawn mower blades. By reviewing the criteria mentioned in the buying guides, you can decide which product best suits your professional needs.

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