How to Sharpen Circular Saw Blades

How to Sharpen Circular Saw Blades

Do you know what the most dangerous kind of saw is? It’s the saw with a dull blade. That’s right. Dull blades on circular saws and other types of power saws can lead to more injuries than saws with well-sharpened blades. Not only are circular saws safer with sharp blades, but they last longer and perform better when the blade is sharpened regularly too.

Don’t make your cutting job more dangerous or difficult than it must be. Get in the habit of sharpening the blade. If you’ve never sharpened a circular saw blade before, it’s easier than you might think.

What You Need to Know How to Sharpen Circular Saw Blades

To sharpen your circular saw blade, you’ll need a few, essential tools:

  • A vice
  • A three-sided diamond files
  • Chalk
  • A Wrench

Once you have the needed tools and supplies, you are ready to prep the blade for sharpening. Remove the blade from the saw. If you’re not sure how to consult the documentation you received when you bought the saw. Handle the blade carefully and put it snugly into the vice. Tighten the clamp to keep the blade nice and secure while you sharpen it. Use the chalk to mark the top point of the blade, so you’ll know when you’ve gone all the way around the blade.

Take the file and start with the tip that you just marked. Angle the blade at about a 20-degree angle to the point and slide it lightly along the saw tip’s bevel. Stroke down and back up again. Repeat these four or five times, and you are done with that tip. Now, skip a blade point and do the same thing to the next point. Once you get all the way around, flip the blade, mark the top tip, and repeat the entire process – all the way around.

Once you’ve completed sharpening the second side’s angles, put the flat side of the file between two cutting tips and run it over the front edge of the tip, one time. Do this to all the other suggestions, and you will be done sharpening your circular saw blade.

Of course, if you’d rather have a professional shop do the work for you, you can get circular saw blades sharpened at a very reasonable price. If you try it once, though, you’ll soon see how easy it is. Since you want to make sharpening a habit that you stick with, it’s best to learn to do it for yourself.

Video Guide –

Video Credit – The Rocket Factory


Video Credit – TinyHouse and Offgrid Resources


Sign up for our Newsletter

Scroll to Top