How to Sharpen a Lawn Edger : A Step-by-Step Guide.

How to Sharpen a Lawn Edger A Step-by-Step Guide
How to Sharpen a Lawn Edger A Step-by-Step Guide

To sharpen a lawn edger, you’ll need to file down the blade at the correct angle. A sharp lawn edger is essential for achieving a perfectly manicured lawn.

Over time, even the best edgers can become dull and weak. But don’t worry, sharpening your edger is a straightforward process that anyone can do with just a few tools. In this article, we’ll walk you through how to sharpen your edger step-by-step, including tips on selecting the right file and maintaining the correct angle.

With a little bit of practice, you’ll be able to get your lawn looking picture-perfect in no time!

Step #1: Preparing The Lawn Edger For Sharpening

Cleaning The Lawn Edger

Before starting to sharpen your lawn edger, the first step is to clean it thoroughly. This will ensure that there is no debris, dirt, or rust on the edger’s surface that may interfere with sharpening. Follow these steps for cleaning:

  • Use a clean, damp cloth to wipe the edger’s surface and remove any dirt or debris.
  • Check the blade and remove any grass or twigs that might be stuck in the teeth or along the blade’s edge.
  • For stubborn grime or rust, use a stiff brush or fine-grit sandpaper to gently remove it from the blade’s surface.
  • Dry the blade using a clean towel or cloth.

Checking For Any Damage Or Signs Of Wear And Tear

The next step in preparing your lawn edger for sharpening is to inspect it for any damage or signs of wear and tear. This step is important as a damaged or worn-out blade cannot be sharpened effectively. Follow these steps for checking:

  • Inspect the blade for any signs of damage, such as nicks, dents, or cracks.
  • Check the blade’s teeth for any signs of wear and tear. If they are dull or have rounded edges, the blade needs sharpening.
  • Look for any signs of rust or corrosion that may have weakened the blade’s edge.

Additionally, it is worth mentioning: How Does a Lawn Edger Work?

Removing The Blade From The Lawn Edger

The final step in preparing your lawn edger for sharpening is to remove the blade from the edger. This step is necessary to ensure that the blade’s edges are available for sharpening. Follow these steps for removing the blade:

  • Locate the blade bolts or screws that hold the blade to the edger. They are usually located on the blade’s center or side.
  • Use a socket wrench or pliers to carefully loosen and remove the bolts or screws.
  • Keep the bolts or screws in a safe place to avoid losing them.
  • Once the bolts or screws are removed, gently pull the blade away from the edger’s body.

Congratulations! You have successfully prepared your lawn edger for sharpening. Stay tuned for the next steps in our step-by-step guide on how to sharpen a lawn edger like a pro.

Step #2: Choosing The Right Sharpening Tool

Understanding The Different Types Of Sharpening Tools Available

When it comes to sharpening your lawn edger, it’s important to choose the right sharpening tool. There are various types of sharpening tools available, and each one serves a different purpose. Here’s a quick rundown of the most common types:

  • Handheld sharpeners: Perfect for quick touch-ups on the blades of your lawn edger. Usually small in size, and they come in different shapes and sizes.
  • Bench grinders: These types of sharpening tools are generally used for heavy-duty sharpening tasks and can sharpen various types of blades.
  • Drill bit sharpeners: As the name suggests, these sharpeners are specifically designed to sharpen drill bits and other small cutting tools.
  • Electric sharpeners: These are great for those who don’t have a lot of time to sharpen their lawn edger blades manually, providing quick and efficient results.

Which Sharpening Tool Is Right For Your Lawn Edger?

Choosing the right sharpening tool depends on several factors, including the type of lawn edger you have and personal choice. Here are a few things to consider:

  • Blade size: Make sure the sharpening tool you choose can adjust the size of the lawn edger blades.
  • Skill level: If you’re naive with sharpening, it may be best to stick with a handheld sharpener or electric sharpener.
  • Time: If you don’t have much time to dedicate to sharpening your lawn edger blades, an electric or bench grinder may be your best option.
  • Budget: Handheld sharpeners tend to be the most affordable option, while bench grinders and electric sharpeners can be more expensive.

By considering these factors, you can determine the right type of sharpening tool for your lawn edger and keep your blades sharp and ready to go whenever you need them.

Furthermore, it is recommended to read: How to Use a Lawn Edger?

Step #3: Sharpening The Lawn Edger

Correct Angle For Sharpening The Blade

To sharpen a lawn edger, it is essential to maintain the correct angle while filing down the blade. The correct angle for a lawn edger’s blade is between 35 to 45 degrees. Anything more than 45 degrees will make the blade too sharp and flat to damage, while anything less than 35 degrees will make the blade blunt and ineffective.

How To Sharpen The Blade

Sharpening a lawn edger blade can be done with a metal file. Here are the steps to sharpen the blade of a lawn edger:

  • First, remove the blade from the lawn edger.
  • Place the blade onto a flat surface and secure it with a clamp.
  • Using a metal file, begin to sharpen the blade along the edges.
  • Maintain the correct angle of the blade while filing down the edges.
  • Move the file towards you in a downward motion, applying light pressure.
  • Repeat the process until the blade becomes sharp and shiny.
  • After sharpening, shine the blade with a sharpening stone if necessary.
  • Reattach the blade to the lawn edger.

Testing The Blade

After sharpening the blade, it is crucial to test the blade’s sharpness before reattaching it to the lawn edger. Here’s how you can test the blade:

  • Hold a piece of paper with one hand.
  • With the other hand, move the blade along the edge of the paper as if you were cutting the paper.
  • If the blade glides through the paper effortlessly without tearing or rumpling, it is sharp enough for use.
  • If the blade feels blunt or tears the paper, repeat the process of sharpening the blade until it reaches optimum sharpness.

Sharpening a lawn edger’s blade is an essential task to maintain its effectiveness and efficiency. With these simple steps, you can sharpen the lawn edger’s blade at home without the need for professional assistance.

Step #4: Replacing The Blade

When To Replace A Lawn Edger Blade

A lawn edger is an essential tool for maintaining a clean and tidy garden. As with any tool that involves blades, the blade on a lawn edger can become dull or damaged over time due to normal use. It’s essential to keep the blade sharp to make sure it can work effectively and provide the expected outcomes.

However, there comes a time when replacing is better than sharpening the blade. Below are some signs that show when it’s time to replace your lawn edger blade:

  • When you notice visible signs of excessive wear and tear on the blade, such as chips, dents, or cracks.
  • When you hear strange noises while using the edger, or if it vibrates excessively, indicating a loose or damaged blade.
  • If you find it more challenging to cut through thick grass, it could be a sign that the blade has dulled beyond repair.

How To Choose The Right Replacement Blade

Choosing the right replacement blade for your lawn edger is essential to ensure it works effectively. Here are some key points to consider when selecting a replacement blade for your lawn edger:

  • Blade type: There are different types of blades available for lawn edgers, including straight, star-shaped, and circular. Ensure you choose the one that is compatible with your specific edger model and is designed for your desired outcome.
  • Blade material: Lawn edger blades are made of different materials, with the most popular being steel or carbide. Sometimes, choosing high-quality materials can significantly affect the longevity of the blade.
  • Brand spec: Lawn edger blades are specific to each edger brand. Therefore, ensure that you purchase the right blade for your edger’s make and model to avoid any compatibility issues.

Installing The New Blade

Now that you have selected the right replacement blade, it’s time to install it. Here are the suggested steps for installing a new blade on your lawn edger:

  • First, you must unplug or power off your lawn edger before installing the new blade for your safety.
  • Remove the old blade from the edger by using a wrench or screwdriver to loosen and remove the blade’s nut that secures it in place.
  • Clean the edger removing any accumulated dirt or debris that may cause interference during installation.
  • Install the new blade by placing it in the same position as the old one and securing it in place with a nut and bolt or screwdriver, ensuring it is snug and firm.
  • Follow the manufacturer’s instructions on how to adjust the blade appropriately regarding its height and angle.
  • Finally, test the lawn edger to check whether the blade’s installation is secure and working correctly.

If you follow our steps on replacing your lawn edger blade, you should have a sharpened and well-functioning lawn edger that will keep your garden looking neat and clean.

Step #5: Maintenance Tips

Sharpening a lawn edger is no easy feat, but it is necessary to ensure clean and precise edging around your lawn. Once you have honed the blade, it is necessary to maintain it properly to keep it working efficiently. In this section, we will cover some maintenance tips to help keep your lawn edger blade in optimal condition.

Tips For Keeping Your Lawn Edger Blade Sharp

To keep your lawn edger blade functioning effectively, you must maintain it regularly. Follow these tips to help keep your blade sharp:

  • Store the edger blade in a dry location
  • Keep the blade clean after each use
  • Lubricate the blade with oil where it attaches to the edger
  • Use the edger only on the grass and avoid hitting concrete

How Often To Sharpen The Blade

The frequency of edger blade sharpening depends on how often it is used and the type of grass you cut. Follow these guidelines to understand when you need to sharpen the blade:

  • If the blade feels blunt to the touch, it needs sharpening
  • If the edger works to cut through tougher grass strands, sharpen the blade
  • For most lawn lovers, a lawn edger blade needs sharpening every 6-8 months
  • For commercial or heavy-duty work, the blade needs sharpening every 3-4 months

In addition, don’t forget to read: How to Fix Lawn Edger?

Keeping The Lawn Edger Clean

Besides keeping the edger blade sharp, maintaining the edger’s cleanliness also contributes to maintaining the blade in top shape. Follow these tips to ensure your edger stays clean:

  • Wipe the blade with a clean and dry cloth after every use
  • Clean any dirt or debris from the edger blade with a wire brush
  • Occasionally give the blade a deep clean using a rust-removing solution and a wire brush
  • Regularly clean the air filter to prevent jamming and damage

With proper care and maintenance, a lawn edger blade can last for years, providing a clean and precise lawn edge every time. Follow these tips to maintain your edger blade in top condition, so your lawn always looks well-manicured.

Frequently Asked Questions On How To Sharpen A Lawn Edger

How Often Should You Sharpen A Lawn Edger?

A lawn edger should be sharpened relying on its usage, but at least twice a year to maintain its effectiveness. If you use it often, you would need to sharpen it more often to ensure it functions correctly.

What Tools Are Required To Sharpen A Lawn Edger?

Sharpening a lawn edger requires specific tools such as files, sharpening stones, or bench grinders. You will also need gloves to keep your hands protected from the sharp blades of the edger while sharpening it.

How Do You Sharpen A Lawn Edger Blade?

First, disconnect the lawn edger from its power source. Next, clamp the lawn edger blade to avoid injuring yourself. Use the sharpening tools to grind at an angle of 45 degrees; keep this angle for each blade until they’re sharp and smooth.

Can A Dull Lawn Edger Be Dangerous?

Yes, a dull lawn edger can be dangerous as it requires more pressure force, which could lead to injuries. It can also cause irregular cutting, making the lawn edger less effective and wasteful. It is essential to keep it sharp at all times.

What Are The Benefits Of Sharpening A Lawn Edger?

Sharpening your lawn edger keeps it functioning perfectly and allows you to cut through the edges of your lawn effortlessly. This, in turn, helps to maintain a precise and aesthetically attractive lawn setting. Sharpening also helps to extend the lifespan of your lawn edger.


Properly sharpening the blade of a lawn edger is an essential part of lawn maintenance that should not be ignored. After all, it ensures that your lawn edger runs smoothly and effectively, and it can also help to extend the lifespan of your equipment.

By following the tips and tricks outlined in this guide, you can successfully sharpen your lawn edger blade and achieve a perfectly neat and tidy edge. Prioritize your safety by wearing protective gear and following the manufacturer’s recommendations regarding the sharpening process.

And don’t forget to take the time to maintain your edger, keeping it lubricated and properly stored after use. By doing so, you’ll ensure a manicured lawn that you can be proud of for years to come.


  • David Mark

    David Mark is an experienced gardening guide with over 20 years of experience. He is passionate about helping people learn about gardening and creating beautiful, healthy gardens. David's love of gardening began at a young age, when he would help his parents in their backyard garden. He quickly learned the basics of gardening, and as he grew older, he began to experiment with different plants and techniques. After graduating from college, David worked as a landscaper for several years. This gave him the opportunity to work on a variety of different gardens, from small backyards to large commercial properties. He also learned how to install irrigation systems, build raised beds, and create patios and walkways. In 2005, David decided to start his own gardening website. He quickly became known for his expertise and friendly personality. He has helped hundreds of people create beautiful gardens, and he is always happy to share his knowledge with others. David is a certified Master Gardener, and he is a member of the American Society of Landscape Architects. He is also a regular contributor to gardening magazines and websites.

3 thoughts on “How to Sharpen a Lawn Edger : A Step-by-Step Guide.”

Leave a Comment