Checked and updated on March 9, 2021 by Aaron Barnett
The quick guide
It is always important to have a sharp blade, on your cordless circular saw and on your corded saws to cut cleaner and safer.
When is it time to change a circular saw blade?
Reasons a circular saw could be struggling to cut;
Using a blunt blade on a circular saw is dangerous, it’s important to make sure to always have a sharp blade installed and ready to go.
This means you need to change your blade when your saw stops cutting easily. When you are putting in the extra force to push a blunt blade you are putting yourself at risk of kickback or slipping.
If you need a more powerful circular saw make sure to have a look here.
Tips for checking a circular saw blades condition
First, unplug your saw from the power source and gently rub your finger along the blade to check that it is feeling sharp like it was when new.
Make sure you also check the teeth of the saw and that there are not any broken. If only 1 tooth is broken but the rest of the teeth are good it is still alright. Be the judge on how easily the saw is gliding through your cuts.
If you have multiple teeth or teeth that are feeling dull, you know you need to replace the blade to be safe and to stop the blade from overheating during operation.
Example: of a broken circular saw tooth from hitting a nail.
Re-sharpening a circular saw blade
You can recycle your circular saw blades when you have a collection of blunt blades.
Don’t sharpen the blades yourself take your collection down to a local sharpening specialist to professionally sharpen a collection at once.
Don’t bother collecting blades that have too much damage it is not worth re-sharpening if more than 5 teeth are broken:
There you have it, how to change a circular saw blade, and a tip to keep your old blades aside to resharpen them and get a second or third life from the blades later.
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