Best Bench Grinder For Lawn Mower Blades Review & Guide

Best Bench Grinder For Lawn Mower Blades Review & Guide

Have you been trying to buy the best bench grinder for lawn mower blades? Let this review and buying guide help.

We understand that one can become confused when searching for the best bench grinder for lawn mower blades due to the variety out there. And not every bench grinder is created equal.

That’s why, to help narrow down your search, we have selected and reviewed 5 of the best bench grinder for lawn mower blades. We have also provided a buying guide to help you make the right decision.

Let’s begin!

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5 Best Bench Grinder For Lawn Mower Blades – Review List

WEN BG4276 Bench Grinder – Best Overall

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Along with offering excellent grinding performance for lawn mower blades, it can also effectively sharpen bits, knives, and other tools. It comes with two 6-inch grinding wheels with grit sizes of 60 and 32. The 60 grit wheel is excellent for general grinding, whereas the coarser 36 grit one is ideal for removing materials faster.

WEN BG4276 incorporates a high-performance 2.1-ampere that starts the bench grinder quickly and delivers smooth performance. This efficient motor rotates the grinding wheels at speeds up to 3450 RPM, offering fast yet effective lawnmower blades and other metals’ grinding. Another outstanding feature of the motor is that it is noiseless, making the bench grinder user-friendly and enabling hassle-free usage.

Multiple built-in add-ons make the WEN BG4276 an ergonomic bench grinder. The work rests to provide excellent support for the blades and tools. They can also be adjusted according to preference to ensure accurate grinding. A flexible illuminating work light is mounted on the top, enhancing visibility during operation while aiding in precision grinding. Two protective eye guards are also situated above the grinding wheels, preventing the risk of injuries from the debris and sparks.

Item Size: 14 x 9.75 x 15 inches

Item Weight: 16 pounds

Wheel Size: 6 inches

Wheel Speed: 3450 RPM

Grit Size: 60, 32

Although the bench is manufactured with high-quality iron, the overall structure is lightweight. A sturdy base also supports the machine and prevents wobbling during the working session. A noticeable feature of the WEN BG4276 is the 2-year warranty, ensuring a long-term and quality grinding experience.

Pros

• Flexible light enhances visibility.
• High-performance and noiseless motor for effective grinding.
• Lightweight construction
• Integrated wobble-free base.

DEWALT Bench Grinder, 8-Inch (DW758) – Runner-Up

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The induction motor functions at a power of 3/4 hp, enabling fast and efficient grinding performance. It rotates the wheels at a high speed of 3600 RPM, ensuring that blades are sharpened and materials are removed effectively.

2 8-inch grinding wheels of 60 and 32 grit are incorporated into the bench grinder. Both wheels are situated at a wide distance, allowing for grinding larger and longer objects. The wheel guards contain an exhaust port, eye shields, and spark deflectors for user safety and smooth performance. Each grinding wheel has an aluminum tool rest attached near it for positioning the blades or other tools for accurate sharpening.

Item Size: 17.75 x 12.63 x 10.75 inches

Item Weight: 7.7 ounces

Wheel Size: 8 inches

Wheel Speed: 3600 RPM

Grit Size: 60, 32

The DEWALT DW758 bench grinder is constructed with high-quality cast iron that promises durability. Its broad functionality also allows it to be used for various other applications like removing rust, polishing, shaping, deburring, etc. DEWALT also offers a remarkable 3-year warranty with this bench grinder.

Pros

• High power motor delivers excellent performance.
• Ideal design for grinding large-sized tools.
• Durable cast iron construction.
• It is backed by a 3-year warranty.

Bucktool BG2600 Bench Grinder – Multipurpose

The wide range of functionality offered by Bucktool BG2600 makes it the best bench grinder for lawn mower blades. Its design incorporates a 6-inch 60 grit wheel grinder with an additional 42-inch 120 grit belt sander for different work applications. Other than metals, the machine allows the grinding and sanding of plastics, a variety of wood, and other materials.

The built-in induction motor operates at a power of 1/3 hp. It rotates the grinding wheel at a speed of 3450 RPM and the belt sander at a high speed of 4480 FPM. Multiple features add to the ergonomic design of the BG2600 bench grinder. These features include cast-iron work tables for support during operation, adjustable eye shields for protection from debris and sparks, and a LED light for visibility.

The sanding belt can be positioned both vertically and horizontally according to requirements. Dust ports are also incorporated into the bench grinder’s design, making dust collection convenient while enabling hassle-free operation.

Item Size: 24.7 x 19.8 x 12 inches

Item Weight: 39 pounds

Wheel Size: 6 inches

Wheel Speed: 3450 RPM

Grit Size: 60

In addition to the grinding wheel, the Bucktool BG2600 comes with a separate brush wheel that can be attached to the bench grinder for removing rust from tools. This bench grinder is easy to use and, thanks to its durable construction, promises long-term usage without wear.

Pros

• Serves as a bench grinder and sander for tools.
• A brush wheel for effective rust removal.
• Work rests provide adequate support for accurate operation.
• Dust ports ensure a clean workspace.

RIKON Professional Power Bench Grinder – Slow-Speed Precision

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It incorporates a powerful 1/2 hp motor that rotates the grinding wheels at a slow speed of 1770 RPM. This speed enables better control and reduces heat build-up, preserving the hardness and conditions of tools and blades being sharpened.

Aluminum oxide is used to manufacture the 28-inch grinding wheels, imparting hardness for effective grinding. The wheels are of grit sizes 60 and 120, and other than for sharpening blades, you can also utilize them in sharpening drill bits.

The rubber feet of the bench grinder prevent vibration during operation. There are also built-in adjustable eye shields and spark resistors that offer safety from spark and debris. A locking key feature is also present with the power switch to provide safety and restrict operation when not in use.

Item Size: 16.38 x 10.75 x 11.25 inches

Item Weight: 37.5 pounds

Wheel Size: 8 inches

Wheel Speed: 1750 RPM

Grit Size: 60, 120

RIKON’s 80-805 bench grinder has additional grinding wheels for convenient replacement. A diamond wheel dresser is included to maintain the grinding wheel’s surface for long-lasting functioning. Furthermore, a magnetic gooseneck LED work light is also included in the set that can be placed and clipped on the bench grinder to enhance visibility.

Pros

• Slow-speed rotation allows better control.
• Generates less heat.
• Aluminum oxide wheels offer improved hardness.
• An included diamond wheel dresser for smoothing grinding wheels.
• Switch with a locking key to prevent unauthorized usage.

JET JBG-8B, 8-Inch7 Bench Grinder (577102) – Durability

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This bench grinder has a well-put design that can effortlessly withstand demanding work. It is made with top-quality cast iron, making it a long-lasting grinding machine.

A fine 60 grit and a coarse 36 grit grinding wheel are attached to the bench grinder. Both these wheels are vitrified, and the glass bond composition makes them highly resistant to wear from water, oils, chemicals, etc. The grinding wheels also enable precision sharpening and can help instantly renew your lawnmower blades’ sharpness.

The efficient 1 hp motor allows continuous operation of the bench grinder while delivering steady results. It rotates the grinding wheels at a speed of 3450 RPM for efficient sharpening of tools and blades. For delivering smooth performance, the enclosed ball-bearings are pre-lubricated, which helps rotate the wheels with maximum speed.

Item Size: 19 x 21 x 11 inches

Item Weight: 60 pounds

Wheel Size: 8 inches

Wheel Speed: 3450 RPM

Grit Size: 60, 36

Multiple ergonomic features are also incorporated in the JET JBG-8B bench grinder, such as adjustable spark guards, eye shields, and work rests. A great feature of this bench grinder is that it does not wobble during operation, owing to the included rubber mounts. For maximum stability, the bench grinder can also be bolted down.

Pros

• Durable construction that withstands a high workload.
• Incorporates stronger and wear-resistant vitrified grinding wheels.
• Pre-lubricated ball bearings ensure smooth rotation.
• Rubber mounts prevent vibration during operation.

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A Buying Guide For The Best Bench Grinder For Lawn Mower Blades

When searching for the best bench grinder for lawn mower blades, you will come across various brands that claim to manufacture top-quality bench grinders. However, not all of them deliver what they promise and turn out to be a waste of money. So, to get your budget’s worth, here are a few factors you should consider when buying the best bench grinder for lawn mower blades:

Composition Of Grinding Wheels

Grinding wheels are made with different materials to cater to different operational requirements. The most common material used for sharpening lawn mower blades is silicon carbide, which imparts an excellent hardness to the wheel.

Besides silicon carbide, aluminum oxide is also used to make grinding wheels suitable for sharpening various blades and tools with hard alloys and steel composition. You might also come across other wheels, such as wire wheels and buffing wheels, utilized for grease removal and metal polishing.

Wheel And Grit Size

Usually, one or two grinding wheels of 6 inches and 8 inches are attached to a bench grinder. When compared, a 6-inch wheel is less expensive and can be utilized for general purposes like sharpening blades, knives, and other tools.

Contrastingly, an 8-inch grinding wheel is ideal for the continuous grinding of blades and tools since it is often paired with a powerful motor. The 6-inch grinding wheels typically weigh around 10-25 pounds, while the 8-inch ones can be 20 to 50 pounds in weight.

Another factor you should look for is the grit size the bench grinder’s wheels offer. It measures the size of embedded abrasive particles that function to sharpen metals. A higher grit size value indicates smaller openings that can effectively sharpen rugged tools and blades.

There are four types of grit sizes; coarse grit (16-24), medium grit (36-60), fine grit (80-120), and superfine grit (150 and above). A bench grinder has grinding wheels of 24 to 120-grit, so opt for one that offers a grit size that matches your work requirement.

Safety Features

Grinding metals releases shards and sparks that can lead to accidental injuries to the eyes and face. To prevent the risk of such injuries, the best bench grinder for lawn mower blades should contain some integrated safety features. It should also have an anti-vibration design for a safe and smooth grinding operation.

An adjustable eye guard or shield over the wheels must be present to prevent debris and sparks from flying. A steel spark resistor or arrestor should also be attached to the eye guard’s position to control the deflection of sparks. Wheel guards must cover the grinding wheels to provide additional safety and prevent unwanted hand injuries.

Additional Accessories

The best bench grinder for lawn mower blades should come with additional accessories that enhance the grinding experience. These accessories can include:

• An LED light to illuminate the workstation and increase visibility.
• Adjustable tool rests near the grinding wheels to support and accurately position the tools and blades being ground.
• Rubber feet to prevent sliding and provide stability during operation.
• A dust port to collect debris generated from the grinding of metals.
• A water tray to dip heated tools and blades.
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Advantages Of Buying The Best Bench Grinder For Lawn Mower Blades

Compared to angle grinders or other grinders, a bench grinder is a convenient option to effectively sharpen tools, blades, and different metal-based objects. It can offer several advantages like:

• With different wheel attachments, you can utilize a bench grinder for various applications such as sharpening, degreasing, and polishing.
• It provides better work control than traditional grinders, enabling accurate grinding without damaging the blade or tool.
• A bench grinder is relatively easy to use and usually has simple integrated controls.
• It is easy to maintain, and the attached grinding wheels can be easily removed when replacement is required.
• Bench grinders are comparatively more affordable than industrial-grade grinders, making them ideal for commercial grinding purposes.

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FAQs

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

Like a portable angle grinder, you can also use a bench grinder to sharpen lawn mower blades. It can serve as a more convenient way to sharpen the blades as it stays in place and does not need to be moved around. Hence, enabling a much more accurate and fast grinding process.

Moreover, attached adjustable work rests can provide better support for the blades and ensure better sharpening, reducing the possibility of accidental damage.

What is the best grit for sharpening lawn mower blades?

For lawn mower blades, many professionals recommend going for a bench grinder with 60-80 grit grinding wheels. This range of grit size provides the perfect balance of coarse and fine grit for grinding. It can effectively remove materials and precisely sharpen lawn mower blades while maintaining their quality. A much coarser or finer grit can ruin the blade condition and generate high amounts of heat, resulting in ineffective sharpening while wasting time.

How many times can you sharpen a lawn mower blade?

It is generally recommended to sharpen lawn mower blades at least twice per season. However, if you are using your lawn mower frequently, it is better to sharpen the blades after 25 hours of the last use. It can help keep the quality of the blades in top condition and prevent them from getting damaged during frequent grass cutting.

It would help if you opted to sharpen your lawn mower’s blades whenever it hits a rocky surface. Stones impacting the blades can cause the edges to dent or chip, which results in quick wearing, leading to constant replacements.

Does wet grass dull mower blades?

Even though wet grass might seem soft to cut through, it can quickly dull your lawn mower’s blades. The high moisture content causes the grass to bend and clump together, requiring extra effort to be cut. This requirement of extra cutting power puts stress on the lawn mower’s engine and can impact the underlying blades, resulting in dull and ineffective sharpness.

Therefore, when dealing with wet grass, it is better to clean the blades before and after cutting and you should sharpen them on time to prevent dulling.

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Conclusion

Getting a bench grinder is convenient for sharpening lawn mower blades and other tools. We hope that through this review and buying guide you were able to find the best bench grinder for lawn mower blades that matches your requirements.