How to Sharpen Circular Saw Blade?

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It is easier to replace a saw blade than sharpening it again and again. But if you are a woodworker, you can also save your money by sharpening it once again to cut the wood just like you did before!

If you think that sharpening the tooth will not work, you are wrong! You can get them back to their new stage if you sharpen the tooth properly. All you need is a tad bit of time and a little effort! 

So, let us learn how to sharpen circular saw blades when they get blunt and cut your wood pieces just the way you used to cut them when the blade was new! 

Step by Step Procedure of Sharpening Circular Saw Blade 

We will show you the tips and tricks on how to sharpen circular saw blades in the shorted possible time! Let’s begin! 

Step 1: Taking off the Blade 

The first work you need to do is remove the blade. This step requires a lot of caution because you can eventually cut your skin to go through severe accidents if you are not careful enough. For this, get your gloves ready. Now, loosen the saw’s nut that is holding the blade. 

Go for clockwise turns to loosen it. For loosening the nut, you will need a ring spanner. Using it, loosen the nut slowly. And then, hold the blade with your gloved hands and take it off from the circular saw. 

While keeping this, make sure it is kept in an area where there is no crowd. Otherwise, you will end up hurting your body. 

Step 2: Clamping the Blade 

The next thing you need to do is take the blade on a workbench. Fixing it with the workbench will afford you the ultimate stability and you will be able to do the work without unnecessary movements. First, take the blade of your circular saw and position it on your worktable. 

Now, get your hands on some clamps. Go for two clamps or more if required. Clamp the blade to the worktable. When you will be sharpening the blade, the blade will move automatically. If it is clamped tight, it will vibrate less. 

Make sure the clamping is strong. The stronger the clamping is, the less the vibration will be. As a result, you will eventually enjoy a sharpening process that has no disturbing vibrations. 

Step 3: Marking 

Once you are done clamping the circular saw blade, get ready for marking the blade. Here, you have to make the mark with the felt. Go for one side of your saw’s blade. After the sharpening process is done on one side, this mark will help you to learn which side is done and which is yet to be done. 

For doing this marking, you have to get your hands on a file. Take the file and tilt it. More or less 20 degrees will be enough for the process. Also, you have to file 4 times to get it done. Go for up and down motion along the bevel and make the mark you need. 

With this mark, you can easily find the way around the blade of your circular saw. Now, you have to hold it and check the other side. 

In the same manner, repeat the sharpening process once again. Start filing the other side of your blade. All you need to do make the teeth of your blade perfectly sharp. 

Step 4: Trimming 

Now that you are done with the marking, start the trimming procedure. Before you go for the final sharpening process, you must ensure that you have to trim the blade with care. 

When you use the circular saw blade for a long period, the row of teeth of your blade gets uneven. And after frequent use, you must trim the teeth and get the row back to straight once again. 

Here, you will again need a file. Make sure you settle for a flat-file. Now, go for flattening and filing the tooth tips cautiously. 

While filing, all you have to do is go for horizontal strokes. Take the file and start making strokes over the teeth rows. Keep repeating the strokes to make sure it is trimmed properly. 

Step 5: Setting the Blade’s Teeth 

If you want to work with the saw blade once again, you must ensure that you have set the teeth. For this, you have got your hands on a saw cut. This cut should be larger or wider than the blade of your saw. 

On the other hand, it will help the material from getting caught here. For making it work, you will need a pair of pliers. With the pliers, you have to create a set. And the set will be direct to the left position and the right position. If you do this, it will help the blade work in both directions in the future. 

You have to make sure that you are careful while working with the originally set tooth. In no situation, you should bend any tooth on any side where it doesn’t belong. 

The tooth will either be directed on the right or the left. You should not force it on its opposite side. If you do it, you will end up breaking the teeth or get bent. And eventually, the blade will not be usable anymore. 

Another thing that is necessary to remember that you have kept the tip of your saw blade’s teeth should be perpendicular to the place of your blade. If you do this, you will get quicker and more even cut! That’s what you need! 

Step 6: Starting the Sharpening 

So, you are done with the filed teeth rows and they are already set, you can start your sharpening process without any barrier now. Get your hands on a triangular file first and with it, you have to start sharpening the blade. 

Check how many teeth you have and for every tooth, you have to go for 3-4 strokes. When you do it, certify that the shape of the teeth will be uniformly pointed. This will make sure that the teeth of the blade will look identical eventually. 

It is better to sharpen the tooth row on the left-hand at first and then you can move to the right-hand tooth row. Also, you have to keep in mind that you cannot remove a lot of the material in the initial stage. 

If you do this, in the end, you will need to adjust all the teeth once again. You don’t want to do the same thing twice, right? 

Step 7: Install the Blade 

Once you are done with the sharpening process, you are ready to install the blade. Just the way you have taken out the blade, you have to install it and then you have to tighten the nuts. Turn the nuts anti-clockwise and make sure it fits properly. 

Now, you have to start the saw and check how it works. Now, run the saw and check if it is providing you smooth and sharp cut. Also, the quiet operation should be ensured! 

Wrap Up 

The step-by-step process of how to sharpen circular saw blades is easy. All you need to do is follow it and make it work. While sharpening the saw, you must ensure that you are not sharpening the tooth too much otherwise; you have to re-shape them again and again! 

Have you ever tried sharpening the circular saw blade you have? How do you do it? Comment below and let us know your process!