Look for worn-down, chipped, broken and missing teeth or chipped carbide tips that indicate it’s time to replace a circular saw blade. Check the wear line of carbide edges using a bright light and magnifying glass to determine if it’s beginning to dull.

How often should you change circular saw blade?

They can last between 12 and 120 hours of continuous use, depending on the quality of the blade and material they’re used to cut.

How do I know if my circular saw blade is blunt?





Quote from the video:
Quote from Youtube video: But one of the most easiest ways to know if your blade is dull is to just look at it if you see chips in it if the blade. Itself is a little bit rounded over or doesn't have a nice sharp edge.

When should I change my metal saw blade?

Watch for These Signs to Know When Your Saw Blade Needs Replacing

  1. Sluggish cutting. You should feel little to no resistance when cutting through metal or wood with a properly sharpened saw blade. …
  2. Burns on wood. …
  3. Difficulty following cut lines. …
  4. Loud sounds from the saw.


How long does a circular saw last?

A good circular saw can last you for 10 to 20 years depending on the amount of use and how you maintain it.

Why does my circular saw burn the wood?





A dull blade will make it hard to cut quickly, and the slower the feed rate of the saw, the more friction against the wood and the greater the likelihood of scorch marks. Pushing the stock through the saw too slowly is a common cause of saw blade burn. Sometimes a blade that feels dull might only be dirty.

Can you sharpen circular saw blades?

You can sharpen steel-toothed circular saw blades yourself using a file. Carbide-tipped blades need to be taken to a professional sharpening service for two reasons: Carbide is so hard that you need a diamond wheel sharpener for it, and sharpening carbide blades is so complicated that you can easily ruin the blade.

How do I know when my saw blade is dull?

When a saw blade is dull, it needs more force to cut through the material. The blade wants to follow the path of least resistance when it’s dull. This leads to inaccurate cuts. If your cuts are jagged or imprecise, then that is a sign that your blade might be worn out.

How do I know if my blade needs sharpening?

Quote from the video:
Quote from Youtube video: Professional saw shops have load meters on their saws. Which means the user can tell when the blade needs to be sharpened.

How much does it cost to sharpen a saw blade?



You can either sharpen the blade yourself or have a professional do it for you. Although the cost will vary depending on the quality, size, and material of the blade, you can expect to pay from 25 to 50 cents for every tooth of the blade that is sharpened.

How do you maintain a circular saw?

By following these circular saw maintenance tips, you can extend the life of the tool and guarantee the best performance possible.

  1. Use the Right Circular Saw Blades.
  2. Clean Your Circular Saw.
  3. Learn About Circular Saw Storage.
  4. Inspect Your Tool Before Every Use.
  5. Guard Against Heat.


How do you clean a circular saw blade?



Quote from the video:
Quote from Youtube video: And water pour it over the blade in a shallow pan and let this soak for about half an hour you'll start to see the deposits lifting off the teeth.

Why does my circular saw blade smoke?

The blade’s teeth flare slightly to cut down on (you guessed it) friction. By flaring the teeth, you make sure they are the only thing contacting the material during the cut. If your blade set is disrupted for any reason, then your blade’s body could be contacting the wood during the cut, causing heat and smoke.

Can a circular saw cut a 2×4?

Choose the right circular saw blade: Typically ripping blades have fewer teeth (10 to 30) and are designed to cut through a large amount of material quickly along the grain of the wood. The best blade for ripping wood (or 2×4) using a circular saw would be a high-quality thin kerf blade like this-Thin Kerf Rip Blade.

How many teeth should my saw blade have?

Why does having the right number of teeth on your saw blade matter?

Number of teeth touching the material Expected outcome
Less than 2 teeth A really rough cut that may rip and tear your material
2 to 4 teeth A nice smooth cut
More than 4 teeth A very slow cut that may cause burn marks on the material being cut



What do you use to clean a saw blade?

Caustic oven cleaners are sometimes recommended as the best way to clean table saw blades. Sodium hydroxide, also known as lye, is the main ingredient in many spray-on oven cleaners.

Can you use wd40 on saw blades?

WD-40 Multi-Use is a great rust protection product and it will effectively protect your saw from building rust easily. Once you’ve got your hands on this product, go ahead and apply a thin and even coat on top of your saw blade and spread it using a clean and dry cloth. You can wipe off any excess with the same cloth.

Will vinegar clean saw blades?

Take +/- 2 teaspoons of cooking soda ( bicarbonate of soda) & a teaspoon of vinegar in approximately 1 pint of water. Dip the items in the water & leave for about half an hour. Remove & just wipe off the item with a cloth —- you will be amazed. I now have all my blades spotless as well as with sharpened edges.

How do you lubricate a saw blade?



Quote from the video:
Quote from Youtube video: Others say use spray greases like white lithium or graphite I admit. These are super easy to apply you can aim and shoot in all those tight places.

Should I oil my circular saw?

On most saws, you don’t have to lubricate anything, that’s done during manufacturing. There are a few moving parts and a number of tools can be used to change the blade out. But even with such simple tools, there are still small maintenance things you can do to extend the life of your saw.

Where do you lubricate a circular saw?

Quote from the video:
Quote from Youtube video: Maybe once a year so according to how heavy use the tool is your grease inside the gear case. And it here every so often every year so it's a good idea to take it into the shop.