Can you use a smaller circular saw blade on a large circular saw?

With circular saws, you can use a wide variety of blades depending on your needs. But there is a common question among DIYers whether they can use a smaller blade on a large saw or not? If I answer it in a word, then I should say “yes”.

So, let’s dig deep into this-

use a smaller circular saw blade on a large circular saw

Can you use a 7-inch blade on a 7-¼” circular saw?

You can use a 7” blade on a 7-¼” circular saw without any problem. However, you should use a 7-¼” blade on your saw as it is the most popular type of blade out there. With a 7.25” blade, you will get a bit more cutting depth. To sum up, you can use both 7” or 7.25” blades on a 7.25 circular saw. Now the choice is yours.

Is it safe to use a smaller circular saw blade on a large saw?

To avoid any nasty accidents, you must use an appropriate-sized blade on your saw. However, it is completely safe to use a smaller blade on a larger one. But you need to make sure that the blade gap is not more than 1/8″ (3 mm).

Let’s see some of the most used blades that you can use on which larger model.

Size of the circular blade (in inch)Size of the circular saw (in inch)
3-11/32 inches‎3-⅜ inches
3-15/16 inches4 inches
4 inches4-¼ inches
4-¼ inches4-½ inches
5 inches 5-¼ inches
5-¼ inches5-½ inches
6 inches6-¼ inches
6-¼ inches6-½ inches
7 inches7-¼ inches
7-¼ inches (The most popular size)7-½ inches
10 inches10-¼ inches
12 inches12-¼ inches
16 inches16-5/16 inches

After all, you can use any smaller saw blade on a larger model by ensuring that the blade gap is less than or equal to ⅛” or 3 mm if you are concerned about safety. However, it is highly recommended to use safety wear such as hand gloves, safety glasses, and so on.

What sizes do circular saw blades come in?

Circular saws are available in a variety of sizes, ranging from 4-½” to 12”. Well, we can categorize the blade into three types: small (S), medium (M), and large (L).

What sizes do circular saw blades come i

Small Sized: From 4-½” to below 7” blades are considered small-sized. These mostly fit the compact saw. You can use the mini saw to perform small household projects.

Medium Sized: The blade that ranges from 7” to 9” are considered medium-sized. And 7-¼” saw is the most popular and widely used circular saw as it can be used for both the smaller and larger cutting needs.

Large Sized: The large-sized tools come with 10” to 12” or larger blades. When you need to perform any heavy-duty cutting tasks, then you should opt for a large one. However If you ask, can I use a larger saw blade on a smaller model, then the answer is straight “No”.

Can you cut wood and plastic with a smaller circular saw blade?

Indeed! You can cut wood and plastic with a smaller blade. You even can perform a wide variety of tasks with a compact saw blade. More specifically, you can cut woods, plastics, metals, tiles, and many more by using a smaller tool.

 cut wood and plastic with smaller circular saw blade

What are the most common types of circular saw blades according to the saw type?

Circular saws differ based on the usages. In fact, you need different blades for performing different tasks. Let’s check out varieties of saw blades and their usage.

Miter Saw Blades:

Miter Saw Blades

Miter saw typically comes with 10 to 12 inches carbon steel blades. And sometimes the blade can be coated with diamond so that it can make the cut easier and smoother. If you need to make an accurate crosscut, then there is no better option than this efficient tool.

The saw is available in a variety of configurations, including compound-miter saw, dual compound miter saw, laser miter saw, and many more. Well, with these specialized saw blades, you can perform regular crosscut, angle cut, bevel and compound angle cut, laser-guided cut, and so on. And all the variants use almost the same type of blades.

Table Saw Blade:

Table Saw Blade

Perhaps, the table saw is the most common type of circular saw. The blade of table saw is same as of circular saw but the function’s a bit different. The tool comes with a variety of configurations, including benchtop, compact, cabinet, contractor, job site, mini, hybrid, and sliding. This type of saw is mostly perfect for woodworking projects. And the size of blades may vary from type to type or model to model.

Abrasive saw blade:

An abrasive saw blade is mainly used to cut tough materials. You can cut tiles, concrete, metals, and other hard materials by using this blade.

Well, abrasive saws come with a variety of appearances, including free-hand, walk-behind, and table-top.

Free-hand saw incorporates a handle, by which you can comfortably operate it. But a hand saw doesn’t come with a mechanical apparatus, because this type of saw can be used to cut larger and heavier materials. And the hand saws are mainly used on construction sites to cut asphalt, pipe, concrete, and so on.

The table-top model runs on electricity, and it comes with an integrated mechanical apparatus (vise) to hold the working object securely.

Walk-behind type, also known as flat saws, are large enough in size, and it comes with a cart or stands to cut the asphalt, concrete or marble floors, and various types of concrete paving materials.

Basically, abrasive saws are fitted with composite friction disk blades that cut the materials abrasively. The abrasive disks typically measure 14” or 360 mm in diameter and 7⁄64” or 2.8 mm thick. However, the larger model may come with a 16” diameter blade.

If your on longevity, then you should opt for a super-abrasive saw instead of opting for a traditional abrasive saw. A super-abrasive tool includes a top-quality blade that offers an amazing cut.

What are the different types of circular saw blades according to the manufacturing materials?

The blades may vary depending on the manufacturing materials. Here are the 3 most common types below that are made out of different materials.

 different types of circular saw blades


This type is made out of steel. You can sharpen this with ease. And the most important thing is that the steel-tipped is the cheapest type. It can cost you around $10 to $30. But it is not so durable.


Perhaps, this is the most widely used type. Well, the carbide-tipped one is made up of a steel disc. But the amazing thing is that the blade has carbide-tipped cutting teeth around the outside edge of it. These types are mostly perfect for cutting wood. However, sometimes this can be used to cut materials. You can purchase one within $20 to $100 depending on the model. This is the most long-lasting type for sure.


The specialty of this blade is that it is coated in diamonds. And these types are mostly perfect for masonry projects. To be more specific, you can cut concrete, tile, brick, and so on with this one. It will cost you around $15 to $100. But the price may vary from brand to brand or product to product. It may last 12 to 120 hours of uninterruptible use on average. However, longevity will mostly depend on the quality of the manufacturing materials.

Is circular saw blade diameter related to rpm?

Yes, the blade diameter is directly related to rpm. Want to know how? Well, let me explain, please. Basically, the smaller diameter blades have higher rpm capacity than those of the larger diameter ones. Alright, let’s see some actual data below.

Diameter of the blade (in mm)Maximum Speed (in rpm)
500 mm3800 rpm
450 mm4200 rpm
400 mm4700 rpm
350 mm5400 rpm
315 mm6000 rpm
305 mm6200 rpm
303 mm6300 rpm
300 mm6300 rpm
254 mm7500 rpm
250 mm7600 rpm
216 mm8800 rpm
210 mm9000 rpm
125 mm15200 rpm
120 mm15900 rpm
100 mm19100 rpm
80 mm23800 rpm

How to take care of a circular saw blade?

If you want to increase the overall life span of your blade, then you should take proper care of them. Here are some tips below on proper maintenance of circular saw blades.

take care of a circular saw blade
  • You should always keep your blade away from humidity or excessive moisture. Then it won’t rust throughout its servicing period.
  • And always try to make it neat and clean for getting better performance.
  • No matter you cut hardwoods or soft materials, you must have to avoid overheating anyway.
  • You should use a circular saw case for sure. It will not only keep your blade safe but the entire tool will be kept safe and secure.
  • Always use the right one to cut a specific type of material. More precisely, if your tool contains a blade for cutting wood but at this time you need to cut metal, then you should replace the wood cutting blade with the metal cutting one.

When do you need to change your circular saw blade?

You should have an understanding of when you should replace the blade of your power tool. Well, I’ve filtered out some of the reasons for replacing them for your better understanding. Let’s see…

  • First of all, if you notice that your blade got dull, then you need to try to sharpen it first. But if it remains dull even after sharpening it, then you have to change it for sure.
  • Secondly, you have to replace the blade if some of the teeth get broken while cutting hard materials.
  • Another reason for changing can be rust or corrosion.

Apart from that, you should replace the blade if it served you more than the recommended period. Well, a diamond-edged circular saw blade should perform around 120 hours of continuous operation. But a typical blade like a carbide-tipped one may last around 6 months to more than 2 years. However, the overall lifespan depends on the quality of manufacturing materials and usages as well.

How to change the circular saw blade easily and safely? [step by step]

As it is a power tool, so you must have to complete the process by maintaining safety. Here is a detailed and explained tutorial below for changing the blade securely.

change the circular saw blade

Step-1: Disconnect your circular saw from the power sources

Your saw can be corded electric or battery-powered. No matter what, you just need to make your tool free of power sources before changing the blade. If the tool is electric-powered, then simply unplug it from the power supply. Likewise, remove the battery if your saw is battery-powered.

It is worth mentioning that this is a mandatory not recommended task. Because if you forget to disconnect your power tool from the power sources, a serious injury may occur.

Once you have dispelled the power sources from your device, you can move forward to the next step.

Step-2: Dispel the arbor nut from the old blade

You may know that the arbor is what on which the blade gets attached. So if you want to change the blade, you have to remove the arbor nut first. After removing the nut, take the blade guard off to free it.

Umm, basically, most of the circular saw comes with a safety lock. If your tool is fitted with a safety lock, you should surely engage it. Otherwise, you need to keep your tool on safe surfaces to remove the blade guard.

However, I assume that your one is incorporated with a safety lock. So you can use it to make the job done. If you press the locking button, the blade will no longer rotate.

Well, now you need to use a wrench to turn the arbor nut counterclockwise. Point to be noted that you must check the manual before turning the arbor not. Because sometimes you need to turn it clockwise to remove the arbor nut.

Step-3: Remove the old blade

After removing the arbor nut, you can easily take the blade off your saw. One thing I forgot to mention is that you should use a safety glove while changing the blade.

Step-4: Install the new blade

Now it’s time to change your blade. However, do not forget to clean your circular saw before placing the new blade on the place. Alright, after positioning the new blade on the shaft, make sure to tighten the necessary nuts with your wrench. After tightening the blade, your tool is okay to perform.

Step-6: Run the circular saw to test the new blade.

After successfully installing the new blade, you should test that it performs well. So you need to run your tool and make a cut for test purposes. If the blade can make perfect cuts, then you are fully set to concentrate on your regular cutting tasks.


Alright, hope you got your answer about whether you can use a smaller blade on your circular saw or not. In fact, you enjoyed almost all the necessary information related to the circular saw. Despite that, if you have any queries regarding this issue, feel free to ask us. We’ll reach you out with the most effective solutions.

Leave a Comment