How To Sharpen Lawn Mower Blades Without Removing

How To Sharpen Lawn Mower Blades Without Removing

Are you one of the many people who dread sharpening your mower blades? Maybe you will never get used to it, or maybe you simply don’t have the time for it. Whatever the reason, having unsharpened blades can cut into your mowing time and leave your grass uneven. Luckily, there is a way to sharpen lawn mower blades without removing them from the mower. With these helpful tips and tricks, you will be able to sharpen your lawn mower blades without taking them off and spending hours on maintenance. Sharpening your mower blades doesn’t have to be as scary as you think! Just follow these steps and get ready to go back outside with a sharper mower that won’t take as long this time around!

How To Sharpen Lawn Mower Blades Without Removing

Inspect Your Lawn Mower Blade

Before you start the process of sharpening lawn mower blades, you will have to first make sure that the blades are still in good condition. You should check each blade individually to make sure that there is no damage or rust on them. If you do find a blade that is not in perfect condition, you can take it off and put it aside for later on.

Use a Sharpening Stone

For people who don’t want to spend any time removing the mower blades, there is another option. This option involves using a sharpening stone to sharpen your lawn mower blades rather than taking them off of your mower. Using this method will allow you to keep your grass cut evenly and save time while doing so!

Use Scissors and nails File

You can also use scissors and a nail file to sharpen your lawn mower blades without removing them from the mower. It’s easy enough to do, but if you aren’t careful, you could get some scratches on the blades themselves! That would be a waste of perfectly good grass! However, this isn’t really a problem because if that happens, it won’t matter after all! When using this method, make sure that you only use one-inch wide files for safety reasons! Keep in mind that when using files or scissors on lawn mower blades, it is important not to nick them.

Use a File

If you are going to use a file, be sure to wear gloves or use a plastic bag to protect your hands. It’s also important to remember that files are very dangerous if they are used on lawn mower blades. If you aren’t careful, the file could slip and cause serious harm to your lawn mower blades! It is recommended that you only use files on small areas of lawn mower blades so that you don’t accidentally scratch them up!

Sharpen Lawn Mower Blades by Hand

If you have never sharpened lawn mower blades before, it might be a good idea for you to take it one step at a time. This will allow you to learn how the process works without harming your new grass! However, if this is your first time using this method, don’t worry because it isn’t complicated at all! Using this method will help ensure that your lawn is cut evenly without any damage!

Sharpen With A Coarse Grindstone

  • First, you will need to sharpen your mower blades with a coarse grindstone. This will be the hardest step in the process and you’ll have to get used to it. The key is to not go too fast. You don’t want to spend hours sharpening your lawn mower blades without getting any results. Go slow and steady, taking your time and following the instructions on the stone.
  • The next step is grinding down the edges of your mower blades with a fine grindstone or file. This is going to be much easier than grinding with a coarse stone, so take it at your own pace and make sure you are following each step along the way. You can also use a buffer attached to your power drill if you prefer that method or if you have one available in your garage!
  • Once all of this work has been done, it’s time for polishing! You can either polish them by hand or use a polishing pad on a power drill or buffer attachment if possible! Some people prefer using an abrasive compound such as compound #1 below, but I recommend using paste wax instead since it’s much easier and works just as well!
  • Once polishing is complete, you can now reinstall the blades on your mower! You’ll want to make sure that the blade is properly aligned and that it sits firmly on the mower. If it doesn’t, you’ll have to use a small file or flat-head screwdriver to create a slight angle on one side of the blade so that it will sit properly in place.
  • Finally, you can finish off your sharpening job by re-installing your blade guards or other pieces of equipment. These steps will not only give your blades an awesome look and clean exterior, but they’ll also ensure that they are working properly and won’t dull as quickly over time!

Use A Belt Sander Or Disc Sander

Sharpen the Mower Blade 

If you have a stationary belt sander or disc sander, then you will want to use it to sharpen your mower blades. If you don’t have a disc sander or belt sander, there are plenty of other tools that can be used instead. You can use sandpaper, and even just a file if you don’t have an extra sander lying around.

Sand Down The Blade

Once your blade has been sharpened using one of the above methods, it is time to start working on the rest of the blade by sanding it down. There are many ways to sand down a blade without removing it from the mower, so feel free to experiment with different methods until you find one that works best for you!

Clean Up The Sharp Edges

If there is any remaining sharp edge on your blade, then this is where things will start to get difficult. You need to take care of these edges before moving on to step 4 so that they don’t cause damage when they come in contact with grass or other parts of your lawn mower! You can either use either a file or sandpaper again for this step, but I would recommend keeping these edges in mind when trying out different methods because they will be a lot easier to clean up if they are already rounded and smooth!

Apply A Blade Clamp

If you want to make sure that your blade is completely round and smooth, then you will need to use a blade clamp on it. You can use a clipper blade clamp or a lawn mower blade clamp. I would recommend the latter, as it is more versatile and can be adjusted to fit the curvature of your blades.

Sharpen The Blade One Last Time

Once you have used the clapper blade clamp or lawn mower blade clamp on your blades, then you need to sharpen them one last time before putting them back on your lawn mower. This step may seem unnecessary, but it is actually very important! You want to make sure that all sharp edges are rounded off properly so that they don’t cause damage when they come in contact with grass or other parts of your lawn mower! After sharpening the blades one last time.

Check Your Mower Blades First

  • To make sure your mower blades are in good shape, you will want to check them first. To do this, you will need to remove the blade from the mower and then use a screwdriver or similar tool to pry up on the blade guard. This will allow you to see if there is any rusting or damage that may be preventing your mower blades from being sharpened properly. If there are any issues with your mower’s blades, it is best to replace them as soon as possible.
  • Next, you will want to check the mower’s blades for any damage. The first thing to look for is any cracks in the blade or broken teeth. This can be easily fixed with a few simple tools, but if you find that your blades have any cracks, you may need to replace them with new ones.
  • If there are any problems with your mower’s blades, it is best to replace them as soon as possible. Before replacing your blades, though, it is important that you clean and oil both sides of the blade to make sure they are working properly before you start sharpening them again.
  • Once the mower’s blades have been cleaned and oiled thoroughly, it is time to sharpen them! You can do this by using a file or stone that has been ground down so that the teeth are at an angle of 45 degrees (roughly). Using this method will allow for great results without requiring excessive effort from yourself or your lawnmower!


Sharpening your mower blades is an essential part of lawn mowing, but it can be a chore that you just don’t have time for. Thankfully, you don’t have to remove your blades to sharpen them, and you can do it in less time than you would have to if you removed them. All you need to do is choose one of the methods above and you will be well on your way to sharper blades and a better-looking lawn. Don’t put mowing off because you are afraid of sharpening blades or spending too much time on maintenance. With these tips and tricks, you can sharpen quicker and easier than ever before!