7 Best Bench Grinder for Sharpening Lawn Mower Blades

If your lawn mower is not cutting grass as precisely as it used to cut at the initial phase, then your lawn mower has gone dull. After using it for an extended period, the lawn mower blade has lost its sharpness to perform with precision. In this stage, you must need the best bench grinder for sharpening lawn mower blades.

A bench grinder is a must-have appliance in your workshop. You may not need it daily, but we guarantee you will need it often. A grinder machine is a tool used for grinding, polishing, and sharpening steel or other materials, shaping metal, plastic, glass, and stone, and removing rust from metal.

Though bench grinder machine has various uses, you are specifically looking for the best bench grinder for sharpening lawn mower blades. So, it is time not to worry because you have come to the right place.

In this review article, we have selected a few Best Bench Grinders for Sharpening Lawn Mower Blades. Besides, we have organized this article keeping in mind your convenience.

Chart Details of 7 Best Bench Grinder for Sharpening Lawn Mower Blades

Name of Bench Top GrinderWheel’s Diameter (Inch)Motor’s Power (H.P.)Maximum Rotation Per Minute (R.P.M.)Weight (Pound)Warranty (Year)
1. RIKON Power Tools 80-808 8” 1 hp Low Speed 1725 RPM Bench Grinder811750545
2. WEN BG4276 2.1-Amp 6-Inch Single Speed Bench Grinder61/33450162
3. JET JBG-8B, 8-Inch Bench Grinder, 1HP, 115V 1PH (577102)8  13450542
4. WEN BG625V 2.5-Amp 6-Inch Variable Speed Bench Grinder6  1/2340028.92
5. DEWALT Bench Grinder, 8-Inch (DW758)8  3/4360039.53
6. Sunex Tools (5001A) 6” Bench Grinder61/2345029.51
7. DEWALT Bench Grinder, 6-Inch (DW756)65/8345028.53

Top Pick

RIKON Power Tools 80-808 8” 1 hp Low Speed 1725 RPM Bench Grinder

I chose this product as one of the best bench grinder machines because of its few unique features, such as less heat-producing due to aluminum oxide wheel, adjustable tool rest, capable of magnifying eye shield, and better safety measures.  

Product Specifications and Descriptions

  • The Manufacturer is RIKON.
  • The Weight Distribution of the grinder is 54 pounds.
  • The Dimension of the grinder is ‎19 x 10.25 x 12.13 inches.
  • The Grinder Wheel Diameter is 8-inch, and the Width is 1 inch
  • The Voltage requirement of the motor of this bench grinder machine is 120 volts.
  • The Motor’s Power is 1 hp (7 amperes).
  • Included items with the grinder are Tool Rests, 8” 1 HP Low-Speed Grinder, Mounting Hardware, Manual, Eye Sheilds
  • The Warranty for this bench grinder machine is 5 years.

Key Features

  • The base of this machine is cast iron-based rubber feet.
  • The maximum RPM of this bench grinder is 1750.
  • This grinder has an L.E.D. work lamp for a brighter view of the tools while grinding.
  • It has an adjustable tool rest and can be adjusted as per the job’s requirement.
  • This machine has two spark arresting shields that work as eye shields.
  • One of the eye shields has 2.5x magnifying capability. This feature provides a detailed view of the tools while grinding.
  • This grinder has metal wheel guards, providing the user safety and protection during grinding.

Special advantages of the grinder machine

As the grinder’s base is made of rubber feet cast iron-based material, this machine is almost vibration-proof and provides stability while rotating.

The adjustable tool rest provides better support to the tools while grinding.

As it is a low-speed grinding machine, the wheels rotate at low rpm, producing less heat. On top of that, the wheel’s material is aluminum oxide, another reason for making less heat. That is why the tool requires less water bath at the grinding time.

Pros

  • Wheel made of aluminum oxide.
  • Vibration free and stable.
  • Mounted L.E.D. work lamp
  • Produces less heat
  • 2.5x magnifying eye shield.

Cons

  • The low-quality tool rest material

My opinion

In my opinion, it is one of the best choices for professionals and beginners to perform any sharpening or shaping of any steel tools or stones. Moreover, it is also effective as a lawn mower blade sharpener.

Runner Up

WEN BG4276 2.1-Amp 6-Inch Single Speed Bench Grinder with Flexible Work Light

I chose this product as one of the best bench grinder machines because it has a few useful features. It is lightweight, generates an enormous amount of R.P.M., is suitable for sharpening and removing iron rust, and has angular adjustability of work tool rest.

Product Specifications and Descriptions

  • The Manufacturer is WEN.
  • The Weight Distribution of the grinder is 16 pounds. 
  • The Dimension of the grinder is 14 x 9.8 x 15 inches.
  • The Grinder Wheel Diameter is 6-inch, and the Width is 3/4-inch
  • The Voltage requirement of the motor of this bench grinder machine is 120 volts.
  • The Motor’s Power is 2.1 amperes.
  • Included items with the grinder are one 60-grit wheel, one 36-grit wheel, pivoting tool rests, and adjustable eye guards
  • The Warranty for this bench grinder machine is 2 years.

Key Features

  • The 2.1-amp motor generates 3450 rotations per minute.
  • This grinder has a flexible work light that illuminates the user’s project during operation.
  • This machine has two wheels. One is 60-grit, and another one is 36-grit
  • It has an adjustable tool rest and can be adjusted as per the job’s requirement.
  • This machine has two spark arresting shields that work as eye shields.
  • This grinder has metal wheel guards, providing the user safety and protection during grinding.

Special advantages of the grinder machine

The 60-grit wheel is specially designed for grinding, and the 36-grit wheel is designed to remove iron rust and revive old tools quickly.

The wheel guards are adjusted in such a way that requires minimal trouble in changing the wheels.

It is pretty handy and portable due to its lightweight.

With the vast R.P.M. generated by the 2.1-amp motor, tasks like deburring ragged edges or cleaning objects to sharpening blades become easy to perform.

The adjustable tool rest provides better support to the tools while grinding. Besides, this adjustable work rests pivot also enable the user for angled grinding applications.

Pros

  • Lightweight and portable
  • Generates 3450 RPM
  • Two different wheels for different purposes.
  • Smoothness in grinding and removal.
  • Adjustable work tool rest.
  • Mounted and flexible work lamp.

Cons

  • Poor stability while in operation.
  • Quick heat up of tools.

My opinion

In my opinion, it is a perfect option for professionals and beginners who want to perform sharpening, shaping, and removing iron rust jobs with one grinding machine. Furthermore, it is lightweight and can be carried anywhere to perform tasks.

Best Quality

JET JBG-8B, 8-Inch Bench Grinder, 1HP, 115V 1PH (577102)

I chose this product as one of the best bench grinder machines because it is built to withstand the high-volume demands of even the busiest shops, this high-quality machine grinds, sharpens, and smooths with equal precision and is flawless results. Moreover, it has a few useful features like generating massive rpm, smoothness in operation, and CSA standard safety measurements.  

Product Specifications and Descriptions

  • The Manufacturer is JET.
  • The Weight Distribution of the grinder is 54 pounds. 
  • The Dimension of the grinder is ‎19 x 21 x 11 inches
  • The Grinder Wheel Diameter is 8-inch, and the Width is 1-inch
  • The Voltage requirement of the motor of this bench grinder machine is 115 volts.
  • The Motor’s Power is 1 horsepower.
  • Included items with the grinder are one 60-grit wheel, one 36-grit wheel, Spark Guards, Eye Shields, Tool Rests, Hardware
  • The Warranty for this bench grinder machine is 2 years.

Key Features

  • The 1 hp motor generates 3450 rotations per minute.
  • The base of this machine is cast iron-based rubber feet.
  • This machine has two wheels. One is 60-grit, and another one is 36-grit
  • It has an adjustable tool rest and can be adjusted as per the job’s requirement.
  • This machine has two spark arresting shields that work as eye shields.
  • This grinder has metal wheel guards, providing the user safety and protection during grinding.

Special advantages of the grinder machine

As the grinder’s base is made of rubber feet cast iron-based material, this machine is almost vibration-proof and provides stability while rotating.

The 60-grit wheel is specially designed for grinding, and the 36-grit wheel is designed to remove iron rust and revive old tools quickly. But both are perfect for cleaning, sharpening, buffing, removing rust, or removing burs from metal.

This machine is a wholly enclosed pre-lubricated ball bearing feature that offers a long machine life.

With the vast 3450 generated by the 1 hp motor, tasks like deburring ragged edges or cleaning objects to sharpening blades become easy to perform. The outcomes come very smooth and precise.

The adjustable tool rest provides better support to the tools while grinding.

The safety measurements of this machine are taken by following the strict guidelines and electrical requirements to meet the CSA safety standards.

Pros

  • Enclosed pre-lubricated ball bearing
  • Generates 3450 RPM
  • Two different wheels for different purposes.
  • Smoothness in grinding and removal.
  • Vibration-proof and stable
  • Follows CSA safety standards.

Cons

  • Quite expensive
  • Pretty heavy for portability

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. However, it requires precision to sharpen the lawn mower blade while grinding, and this machine never fails to provide precision with its vast rpm range.

Best Features

WEN BG625V 2.5-Amp 6-Inch Variable Speed Bench Grinder with Flexible Work Light, Black

I chose this product as one of the best benchtop grinders because it has a few useful features. It generates an enormous amount of rpm, has an adjustable rpm range from 2000 to 3400 RPM, quickly removable wheel guard, flexible mounted work lamp and is suitable for sharpening and removing iron rust, and has angular adjustability of work tool rest.

Product Specifications and Descriptions

  • The Manufacturer is WEN.
  • The Weight Distribution of the grinder is 28.9 pounds. 
  • The Dimension of the grinder is ‎ 15.35 x 9.65 x 17.32 inches
  • The Grinder Wheel Diameter is 6-inch, and the Width is 3/4-inch
  • The Voltage requirement of the motor of this bench grinder machine is 120 volts.
  • The Motor’s Power is 2.5 amp.
  • Included items with the grinder are one 80-grit wheel, one 36-grit wheel, pivoting tool rests, and adjustable eye guards
  • The Warranty for this bench grinder machine is 2 years.

Key Features

  • The 2.5-amp motor can generate a minimum of 2000 rpm to a maximum of 3400 rpm.
  • This grinder has a flexible work light that illuminates the user’s project during operation.
  • This machine has two wheels. One is 80-grit, and another one is a 36-grit wheel.
  • It has an adjustable tool rest and can be adjusted as per the job’s requirement.
  • This machine has two spark arresting shields that work as eye shields.
  • This grinder has metal wheel guards, providing the user safety and protection during grinding.

Special advantages of the grinder machine

The 80-grit wheel is specially designed for grinding, and the 36-grit wheel is designed to quickly remove iron rust and revive old tools.

The rpm setting is adjustable from 2000 rpm to 3400 rpm according to the need of the job with an adjustable dial.  

The bench grinder can perform deburring ragged edges, cleaning objects, and sharpening blades with the massive rpm range produced by a 2.5-amp motor. Besides, this bench grinder is suitable for reviving old, worn-down knives, tools, and bits.

The wheel guards are adjusted in such a way that requires minimal trouble changing the wheels.

The adjustable tool rest provides better support to the tools while grinding. Besides, this adjustable work rests pivot also enable the user for angled grinding applications.

Pros

  • Feature of changing rpm from 2000 to 3400 RPM
  • Two different wheels for different purposes.
  • Smoothness in grinding and removal.
  • Quick removable wheel guard design.
  • Adjustable work tool rest.
  • Mounted and flexible work lamp.

Cons

  • Poor stability while in operation.
  • Quick heat up of tools.

My opinion

In my opinion, it is an accurate option for professionals to perform sharpening, shaping, and removing iron rust jobs with one grinding machine. Furthermore, its adjustable rpm settings enable the user to use it in variable options. 

Best Home Use

DEWALT Bench Grinder, 8-Inch (DW758)

I chose this product as one of the best benchtop grinders because it is an ideal option for home use and industrial applications. Its 3/4 hp motors generating power of a maximum of 3600 rpm makes it suitable for services like sharpening, deburring, rust removal, shaping, polishing, grading, and any other heavy-duty applications.

Product Specifications and Descriptions

  • The Manufacturer is DEWALT.
  • The Weight Distribution of the grinder is 39.5 pounds. 
  • The Dimension of the grinder is ‎17.75 x 12.63 x 10.75 inches.
  • The Grinder Wheel Diameter is 8-inch.
  • The Voltage requirement of the motor of this bench grinder machine is 120 volts.
  • The Motor’s Power is 4.2 amp. (3/4 hp)
  • Included items with the grinder are Eye shields, 60 grit wheel, adjusting wrench, 36 grit wheel, Spark deflectors, tool rests
  • The Warranty for this bench grinder machine is 3 years.

Key Features

  • The 3/4 horsepower induction motor can generate a maximum of 3600 rotations per minute.
  • The base of this grinder is made of industrial cast iron-based material.
  • This machine has two wheels. One is 60-grit, and another one is a 36-grit wheel.
  • It has an adjustable tool rest and can be adjusted as per the job’s requirement.
  • This machine has two spark arresting shields that work as eye shields.

Special advantages of the grinder machine

The 60-grit wheel is specially designed for grinding, and the 36-grit wheel is designed to remove iron rust and revive old tools quickly.

The 3/4 horsepower induction motor provides an enormous amount of power which is suitable for industrial grinding applications. Besides, it can easily handle the hardest metals and most abusive applications

The machine’s base is made of cast iron-based material, so it is almost stable. It also results in prolonged machine life and durability.

The massive 3600 rpm is perfect for providing precision, accuracy, and smoothness during grinding. This enormous range is also suitable for iron rust removal from any tool.

The adjustable precision machined aluminum tool rest provides better support to the tools and allows the user to position the tool accurately while grinding. Besides, this adjustable work rests pivot also enable the user for angled grinding applications.

Pros

  • Generate 3600 rpm.
  • Stable and durable.
  • Two different wheels for different purposes.
  • Smoothness in grinding and removal.
  • Adjustable work tool rest.
  • Suitable for industrial grinding applications.

Cons

  • Quick heat up of tools.
  • Vibration issue while in operation.

My opinion

In my opinion, it is an excellent option for professionals to perform deburring, rust removal, shaping, polishing, grading, and many more. Likewise, it is ideal for sharpening industrial blades, knives, chisels, and other cutting tools.

Best Accuracy

Sunex Tools (5001A) 6” Bench Grinder with Light

I chose this product as one of the best benchtop grinders because it has ball-bearing construction, providing better work smoothness and accuracy. Besides, it has a 1/2 hp motor capable of generating 3450 rpm, an eyes protector shield, cast iron-based rubber feet enabled with mounting holes, and a bight work lamp.  

Product Specifications and Descriptions

  • The Manufacturer is Sunex International.
  • The Weight Distribution of the grinder is 29.5 pounds. 
  • The Dimension of the grinder is ‎ 16.22 × 14.17 × 11.02 inches
  • The Grinder Wheel Diameter is 6-inch.
  • The Voltage requirement of the motor of this bench grinder machine is 115 volts.
  • The Motor’s Power is 3.50 amp. (1/2 hp)
  • The Warranty for this bench grinder machine is 1 year.

Key Features

  • The 1/2 horsepower motor can generate a maximum of 3450 rotations per minute.
  • The base of this grinder is made of cast iron-based material and has rubber feet enabled with mounting holes.
  • This machine has two wheels. One is a medium 60-grit, and another one is a coarse 36-grit wheel.
  • This machine has a bright and flexible work light.
  • The wheels are connected with the motor through a ball-bearing construction.
  • This machine has two spark arresting shields that work as eye shields and protect the eyes from any dispersing spark while grinding.

Special advantages of the grinder machine

The 60-grit wheel is specially designed for general grinding, and the 36-grit wheel is designed to quickly remove iron rust and revive old tools.

The 1/2 horsepower motor provides enormous power, which is suitable for lightweight grinding applications. Besides, it can easily handle the hardest metals and any other light applications

The machine’s base is made of cast iron-based material, so it is almost stable. On top of that, because of the rubber feet enabled with mounting holes, it can be set anywhere. These features altogether give a prolonged machine life and durability.

The massive 3450 rpm of the wheel, which is mounted with the motor through ball bearing construction, is perfect for providing precision, accuracy, and smoothness during grinding. This enormous range is also suitable for iron rust removal from any tool.

The built-in work lamp provides a better and brightened vision of the tool.

The eye protector shields mounted with the machine prevent the dispersion of sparks towards the eyes. It ensures maximum safety of the eyes.

Pros

  • Generate 3450 rpm.
  • Stable and durable with cast iron material and rubber feet
  • Mounted bright work lamp
  • Two different wheels for different purposes.
  • Smoothness in grinding and removal.
  • Ball bearing construction for smooth operation.

Cons

  • Unsuitable for heavy-duty work
  • Quick heat up of tool

My opinion

In my opinion, it is an excellent option for professionals who want to deal with light weigh steel tools and other objects. Due to ball bearing construction, its deburring, rust removal, shaping, polishing, and sharpening performance are pretty smooth and precise.  

Best Power

DEWALT Bench Grinder, 6-Inch (DW756)

I chose this product as one of the best benchtop grinders because it is an ideal option for home use and heavy-duty applications. Its 5/8 hp motors generating power of a maximum of 3450 rpm makes it suitable for services like sharpening, deburring, rust removal, shaping, polishing, buffing of any blades, bits, chisels, and other cutting tools.

Product Specifications and Descriptions

  • The Manufacturer is DEWALT.
  • The Weight Distribution of the grinder is 28.5 pounds. 
  • The Dimension of the grinder is ‎16.75 x 11.38 x 9.44 inches.
  • The Grinder Wheel Diameter is 6-inch.
  • The Voltage requirement of the motor of this bench grinder machine is 120 volts.
  • The Motor’s Power is 5/8 hp.
  • Included items with the grinder are a 36-grit wheel, a 60-grit wheel, two eye shields, two spark deflectors, and a tool rest.
  • The Warranty for this bench grinder machine is 3 years.

Key Features

  • The 5/8 horsepower induction motor can generate a maximum of 3450 rotations per minute.
  • The base of this grinder is made of industrial cast iron-based material.
  • This machine has two wheels. One is 60-grit, and another one is a 36-grit wheel.
  • It has an adjustable tool rest and can be adjusted as per the job’s requirement.
  • This bench grinder has rear exhaust ports in wheel guards. This enables smoother operation.
  • This machine has two spark arresting shields that work as eye shields, preventing sparks’ dispersion towards the eyes and protecting the eyes.

Special advantages of the grinder machine

The 60-grit wheel is specially designed for grinding, and the 36-grit wheel is designed to remove iron rust and revive old tools quickly.

The 5/8 horsepower induction motor provides an enormous amount of power which is suitable for industrial grinding applications. Besides, it can easily handle the hardest metals and most abusive applications

The machine’s base is made of cast iron-based material, so it is almost stable while in operation. It also results in prolonged machine life and durability.

The massive 3450 rpm is perfect for providing precision, accuracy, and smoothness during grinding. This enormous range is also suitable for iron rust removal from any tool.

The adjustable precision machined aluminum tool rest provides better support to the tools and allows the user to position the tool accurately while grinding. Besides, this adjustable work rests pivot also enable the user for angled grinding applications.

Pros

  • Generate 3450 rpm.
  • Stable, durable, and high longevity.
  • Two different wheels for different purposes.
  • Smoothness in grinding and removal.
  • Suitable for heavy-duty work
  • Precision-machined aluminum tool rests for accurate positioning of tools

Cons

  • Quite expensive.

My opinion

In my opinion, it is an excellent option for professionals because it is great for sharpening blades, bits, chisels, and other cutting tools. Besides, it allows users to grind metals accurately according to their desired thickness or shape.

Safety Guide: Precautions you must follow before using a bench grinder machine

As a bench grinder is a continuously rotating machine, you must take a few precautions before you start working. Precautions will reduce the possibility of accidents and improve safety while operating the grinder machine.

Precautions you must follow before using a bench grinder machine
Precautions you must follow before using a bench grinder machine

There are a “must-follow” list and a “Don’t” list.

Must Follow List-

  • Before using the grinder, you must ensure that you are familiar with all machine operations and controls
  • Ensure the wheels do not touch the work rest and that the gap between wheel and rest is no greater than 1.5mm.
  • Check that the wheels are running true and are not glazed or loaded.
  • Check for cracks in the wheel and report any you find.
  • Stand to the side of the wheels when starting up.
  • Let the wheels gain maximum speed before starting to grind.
  • Ensure that only one person is operating the machine at any time.
  • Slowly move the workpiece across the face of the wheel in a uniform manner.
  • Switch off the machine when work is completed.
  • Clean up and absorb any coolant spills immediately.
  • Leave the machine in a safe, clean, and tidy state.

Don’t list-

  • Do not use faulty equipment.
  • Do not hold the workpiece with gloves, cloth, apron, or pliers.
  • Do not grind non-ferrous metals.
  • Do not grind on the side of the wheel.
  • Do not hold small objects by hand.
  • Never leave the machine running unattended.
  • Do not bend down near the machine while it is running.
  • Never force the workpiece against a wheel

Potential hazards and injuries you may face while using a bench grinder machine

A list of possible hazards and injuries a user may face is provided. 

  • Hot metal.
  • Sparks.
  • Noise.
  • Sharp edges and burrs.
  • Hair/clothing getting caught in moving machine parts.
  • Wheels ‘run on’ after switching off.
  • Eye injuries.

A user is highly encouraged to be aware of these and suggested taking preventive measures before or while using a bench grinding machine.

Buying Guide: Things you must keep in mind before purchasing a bench grinder machine

Before you purchase the best bench grinder for sharpening lawn mower blades, you must consider a few factors regarding bench grinder machines. These determining factors will help you select the perfect one per your need and use.

Things you must keep in mind before purchasing a bench grinder machine
Things you must keep in mind before purchasing a bench grinder machine

Power of Motor

One of the most critical factors of a bench grinder machine is the motor’s power. The motor is the reason which is why the wheel of the grinder rotates. Powerful motors generate higher RPM, which results in higher precision, smoothness, and accuracy in sharpening, polishing, and shaping of tools.

So, before you purchase a bench grinder machine, you must ensure that the motor of that lathe generates higher RPM. You need to pick motor power according to the requirements of your job.

Material

It is one of the most important things to consider before purchasing. Good material is responsible for a bench grinder machine’s stability, durability, and longevity. Lack of good material may result in the vibration and shaking of the machine while in operation.

In this regard, the best material is cast iron-based material. The iron cast material will provide fewer vibrations and better stability. So, you must ensure that you purchase the one made of cast iron-based or something better than cast iron material.

Eye protecting shield or Spark Arresting Barrier

It is s transparent flat object made of high-quality plastic. While anyone is grinding, polishing, or sharpening any metal tool, a huge amount of spark is generated from the friction of the wheel and metal tool. If these dispersing sparks hit the eyes, it may make someone partially or wholly blind. That is why a spark arresting shield is required to protect the eyes.

So, before you purchase the bench grinder machine, you have to ensure that the machine has a transparent eye-protecting shield or spark-arresting barrier.

Built-in Work Lamp

Nowadays, most bench grinder machine comes with a built-in work lamp. This work lamp brightens the object, providing the user with a better and more detailed vision. As a grinding machine is a rotating machine, it may lead to any unexpected hazard or injury at any time due to a lack of proper vision. So, needless to say, a built-in work lamp is necessary.

So, before you purchase, you must ensure that the bench grinder has a built-in mounted work lamp. It is a crucial factor for safety.  

Wheel Guard

The wheel is the essential thing a grinder must have to ensure the maximum safety of the user. The absence of a wheel guard in the grinder machine may often lead to fatal accidents or injury. An open rotating wheel without a wheel guard is like an unpinned grenade.

So, it is your compulsory duty to ensure that the grinder machine you buy must have wheel guards.

Warranty

Warranty is also an essential critical factor in purchasing a bench grinder. A bench grinder is an electric machine, so it may often face many electrical or other failure issues. In this regard, the service of the manufacturer company’s experts is needed to repair the machine.

So, before you buy the bench grinder machine, you have to ensure that the one you are buying has a minimum of 2 years of service warranty. 

FAQs: Frequently Asked Questions

Can you use a bench grinder to sharpen lawn mower blades?

After using the lawn mower for an extended period, the lawn’s blade gets dull. Then it requires to sharpen the edges of the lawn mower’s blade. To sharpen the lawn mower blade, you may go to any workshop. But you may also sharpen the blade at your home if you have a bench grinder.
So, you can use your bench grinder to sharpen the lawn mower blade. 

What is the best grinding wheel for sharpening lawn 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 a wide range of 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 kind of metal.

What kind of grinder do you use to sharpen a lawn mower blade?

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 benchtop grinder machine performs better than an angle grinding machine.  

What is the best bench grinder on the market?

It is a relative question. The answer may vary from person to person according to their need. The need for a bench grinder machine is different per people’s job requirements. Still, we are providing the list of the few best grinder machines.
§  RIKON Power Tools 80-808 8” 1 hp Low Speed 1725 RPM Bench Grinder
§  JET JBG-8B, 8-Inch Bench Grinder, 1HP, 115V 1PH (577102)
§  WEN BG4276 2.1-Amp 6-Inch Single Speed Bench Grinder with Flexible Work Light
§  WEN BG625V 2.5-Amp 6-Inch Variable Speed Bench Grinder with Flexible Work Light, Black
§  DEWALT Bench Grinder, 6-Inch (DW756)
§  DEWALT Bench Grinder, 8-Inch (DW758)

How sharp do lawn mower blades need to be?

Home and garden decorating experts answered the question that the sharpness of a lawn mower blade needs to be sharp like a butter knife. And the required angle of sharp 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”.   

How do you sharpen a lawn mower blade at home?

It becomes a hassle to go to the workshop to sharpen the lawn mower blade often. So, you can sharpen your lawn mower blade at home by using your benchtop grinder machine or angle grinder machine.
To do this, you must first bring out the blade from the lawn mower. Then you must take the necessary precautions and sharpen it like a regular knife.

How often should mower blades be sharpened?

According to the opinion of the experts, the lawn mower blade needs to be sharpened after 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’s why this hour range is recommended by the experts.

Final Insight

The user of a benchtop grinder machine varies in the working arena and expertise of different persons. Everyone has their particular preferences about benchtop grinding machines. So, the preferences of different people also vary according to the metal on which they are working and on the job’s needs.

But specifically, if you are looking for the best bench grinder for sharpening lawn mower blades, I believe, after going through the review, you have already reached your concluding decision.

This review recommends the seven best bench grinders for sharpening lawn mower blades. Now, considering the buying guides’ determining factors, it is your discretion to purchase the one which mostly meets your working requirements.

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