How to Sharpen a Lawn Mower Blade with a Dremel

Looking for a proper guide on how to sharpen a lawn mower blade with a Dremel? You are in luck; we are about to explain a step-by-step guide to sharpening your lawnmower blade with the necessary tools.

Although there are lots of lawn mower blade sharpeners out there, we will be using Dremel for this particular guide.

If this is your first time, don’t worry. The guide will be exceptionally beginner-friendly.

Importance of Sharpening Lawn Mower Blades

Well, most house owners with a big yard feel proud to do lawn cleaning from time to time.  Some people also find this satisfying and rewarding regardless of the season.

But you need to prepare beforehand in order to get the desired result.

If the mower you are using isn’t brand new or you have used it quite a few times in the past, it’s time to sharpen the blade.

Sharpening doesn’t only make finer cuts, but it also helps with fuel consumption and puts less stress on the mower overall.

How to Sharpen a Lawn Mower Blade with a Dremel?

The guide involves removing the blade from the mower, sharpening it with Dremel, and putting back on the mower again. You will be handling very sharp tools along with a high-frequency drill machine.

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So, it’s best to do it in your backyard or your garage for extra precaution.

Things you will need

  • Vise
  • Socket wrench
  • Dremel tool
  • Metal brush or scraper
  • Safety goggles
  • Safety gloves

Removing the Blade

First of all, you need to remove the blade from the mower. Make sure you have turned off the mower and unplugged the spark plug before making any changes.

Then place your socket wrench on the nut of the blade. Slowly rotate counterclockwise to unscrew the nut.

If the blade moves, jam a piece of wood to restrict the blade movement. You can also hold down the blade with your hands assuming you are wearing safety gloves.

After you have unscrewed the nut, set aside the blade for the next procedure.

Cleaning the Blade

With times and recurrence usage, lawnmower blades tend to collect a lot of gunk and rust. So, this is a good time to clean the blade before sharpening.

Use a vise to clamp the blade securely and gently scrape away any loose rust.

For this task, it would be easy if you could use a steel scraper. If a steel scraper is not available, use any steel brush.

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Another reason you should definitely clean the blade before sharpening is to flush out the original sharp edge.

Sharpening with Dremel

Now comes the important part. Honestly, there are numerous ways you can sharpen a mower blade. But here we will be using the Dremel as a blade sharpener for the lawnmower.

Dremel is generally a compact power tool that comes in either corded or cordless depending on the model. The cordless variant has more advantages as it is more portable than the corded one.

For sharpening, the Dremel offers a high-performance filing stone attachment. Plug the stone attachment on the Dremel and slowly work your way to the sharpening with 2500 RPM.

It’s vital to follow the previous 30-degree grove of the blade. In addition, keep track of passes you have done on one side so you can do the same on the other side.

One thing you should keep in mind is that technically you are chipping off metal parts from the blade. If you overdo it, the blade integrity will be compromised.

Balancing the Blade

After you have completed the sharpening process, now it’s time to hang the blade from the middle to see the weight balance. As we said earlier, the sharpening process takes away a small portion of the metal.

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Therefore, after the sharpening job, the blade will be a bit lighter. You just have to check both sides have the right weight ratio.

If one side of the blade is too heavy and it leaning downwards, you should make another pass with the Dremel.

As soon as you get the proportion right, stop sharpening.

Reattaching the Blade

The hard part is over. Now it’s time to reattach the perfectly sharpened blade on the mower. Here most individuals get confused thinking about which way is the right way.

Almost every lawnmower blade rotates counterclockwise. That means the sharp edge will be on the left side.

Next, place the nut and screw it clockwise. If everything looks perfect, attach the spark plug. Now it’s time for a test mowing to see if it’s working accordingly.

Final Thoughts

By now you have a good understanding of how to sharpen a lawn mower blade with a Dremel.

As this is a guide for the beginner, we tried to include as much information about the sharpening lawn mower blade with Dremel.

So, the fundamentals will serve you in the long run. That said, we hope now you are able to sharpen your mower blade easily and enjoy the little thing in life.