Circular Saw Blades
What types of circular saw blades should I buy? Which blade for metal and which one for plywood?
Let me help you with the right answer:
A circular saw is an incredibly useful tool and you will find one in almost every workshop out there. However, like many power tools, a circular saw is only as good as the parts that go into it. In this case, I am referring to the blades that you use on your circular saw.
Choosing the right blade for your circular saw is crucial if you want your circular saw to operate at peak efficiency. But, what is the best blade for each job? That is where I come in. I will give you all the information that you need to make an informed purchase when it comes to circular saw blades. I will tell you about the different kinds of circular saw blades and what kind of blade is best for each job.
Types of circular saw blades
Different types of circular blades are available according to their intended purpose. Standard blades are used in carpentry work, while abrasive blades are for metal cutting and diamond blades for masonry work.
You will also find blades with different thicknesses and number of teeth which I explain in detail later. For now, understand that a fine blade will have a large number of small-sized teeth. Conversely, a rough blade will have less number of larger sized teeth that enable it to cut through the material much faster.
Blade Selection Guide
In case you are in a hurry, here is a quick selection table for reference.
Standard circular saw blades
As you have probably figured out from the name, standard blades are the blades that you will use for most jobs. They are great at cutting wood and come in several sub-varieties for different kinds of woodcutting jobs. Some of the different kinds of standard blades that you will see include:
- Rip-cut blades: These kinds of blades have a low number of teeth, some have as low as 16 teeth, while others have closer to 40 teeth. The lower number of teeth allows for aggressive cutting and enables you to make larger cuts.
- Framing Blades: Closely related to rip-cut blades are things called “framing blades.” These blades also have a very low number of teeth, usually 24 and are intended to make cuts aggressively and quickly. Both rip-cut blades and framing blades are ideal for situations where speed and volume are more important than precision.
- Crosscut blades. These kinds of blades have a higher number of teeth. Very often you will see these kinds of blades having teeth numbering in the 60 to 80 range. The higher number of teeth allows you to make more accurate and cleaner cuts through wood.
- Plywood blades: These kinds of blades have the highest number of teeth that you will find on a commercial saw blade. The blades often have over 100 teeth. The purpose of these blades is to make the absolute finest cut possible with minimal damage or ripping is done to the wood.
Abrasive blades or discs are a unique kind of saw blade. They don’t “cut” like traditional circular saw blades do. Instead, abrasive discs work in a similar fashion to grinders. Abrasive discs tend to be out of different abrasive materials as well. Silicon carbide and aluminum oxides are two of the most widely used material to produce abrasive circular saw blades.
Abrasive discs are useful for cutting through hard materials like steel. You can also use them for your masonry jobs although a diamond blade is a much-preferred choice.
These are blades made out of steel with synthetic diamonds speckled throughout them. The diamond circular saw blade is mainly used for masonry works. These blades can cut through very hard materials like concrete, bricks, stones, and tiles.
Continuous rim blades
These blades have no teeth, which is the main thing that differentiates them from standard circular saw blades. These kinds of blades are specifically designed to cut through materials like tile. Therefore, they are not particularly suited to cutting through the wood; that job is better left to standard circular saw blades.
Turbo rim blades
Conceptually, turbo rim blades are very similar in appearance to continuous rim blades in that both have no teeth. However, turbo rim blades are serrated, which gives them a lot more raw cutting power. Because of this, turbo rim blades are the kind of saw blades that you want to use when you need to cut through really tough materials like say concrete or brick.
Segmented blades are rimmed with diamond edges. However, each edge is separated by a small gullet, which sets them apart from turbo rim blades and continuous rim blades. Because of these gullets, segmented blades are able to deliver a lot of cutting power, but with less accuracy and surface finish. If you need to quickly cut through tough materials like hardwood, concrete, or brick, and you don’t care about resulting rough cut edges, then a segmented blade is the best option.
Wet Vs Dry Cutting
Some of the circular saw diamond blades are for wet cutting while others can only do the dry cutting. Which one to choose, depends on your circular saw and the type of application.
Dry Cutting: If you have a small handheld circular saw or a cordless one, then dry cutting blades may be your only option. Dry cutting is recommended for intermittent cutting. If you are doing home improvement jobs where you are working within limited space, dry cutting blade is a great choice.
Wet Cutting Blades: In case of wet cutting water is used to absorb the heat from the blade as well as to wash away the debris. Wet cutting is the preferred method for masonry work especially for tile cutting since it works faster, cleaner. Another advantage of wet cutting is that it provides longer tool life.
However not all electric circular saw support wet cutting since there is the risk of electric shock.
Circular Saw Basics – Hook angle and kerf
There are two other very important concepts to consider when buying a circular saw blade. First off is the idea of a hook angle. Saw blades come in various hook angles; ranging from a high of around 20 degrees to a low of about.5 degrees. The higher a blades’ hook angle, the more effective it is going to be at ripping through softer materials. So, if you want to cut through a lot of softer material, very quickly (like softwood) then go for blades with a higher hook angle. On the other hand, blades with a lower hook angle deliver more precise cuts, but they cut at a much slower rate.
Another important concept is the idea of a blade’s kerf number. This is really just a fancy way of referring to how thick a blade is. Blades that are thicker (aka ones that have a higher kerf number) are better for cutting through tough materials and they tend to be more durable. Blades that are thinner (aka ones with a low kerf number) are better for making smaller, but more accurate cuts; however, they are less durable and not as good for cutting through larger amounts of material.
Circular saw blades come in a variety of sizes. This is important to keep in mind since certain size blades only work with certain kinds of saws. For example, a smaller sized blade (such as a 7-inch blade) is only going to work with smaller circular saws, such as handled models. Likewise, bigger blades (such as 12-inch blades) will work with bigger models, like table saws. Needless to say that, the smaller diameter blades cut shallower than larger blades.
So before you buy the blade, check your saw and find out the arbor size and the maximum diameter it can accept.
Best Circular Saw blades for different material
In this section, I will quickly go over what the best circular saw blade type is for cutting each kind of material.
For cutting wood, I say the best option is to go with a standard circular saw blade. For something as simple as cutting wood, there is no reason to go for a more expensive saw blade. Depending on the kind of woodworking, you will want to be careful about how many teeth the blade has. If you are just cutting through large amounts of lumber, then I recommend going for a blade with a lower number of teeth, it will save you time. If you need precision, make sure you get a blade with a high number of teeth, the more teeth, the more precise your cuts will be.
Blade for Plywood
Because of how thin plywood is, you will want to go for a very precise standard saw blade. A lot of circular saws come with a blade that they recommend using for thin materials like plywood. My advice is to ditch that and buy a specialty blade. The blades manufacturers include with their saws are almost always the wrong kind and they will decimate plywood.
By investing in a low kerf, high tooth count blade, you will ensure that you can accurately cut through plywood without damaging the edges. You can use the plywood cutting blade to cut laminate as well.
Circular Saw Blade for Metal
Non-Ferrous Material: Carbide tipped non-ferrous blades are ideal for cutting aluminum and other softer metals like lead, brass, and bronze. If you are going for this type of blade, I suggest you get a blade with an anti-kickback design.
Ferrous Metal: If you have a job or project that requires you to take your circular saw to steel, then I wholeheartedly recommend investing in an abrasive blade. Those are the absolute best option for cutting steel and harder materials.
If you use the wrong kind of saw blade, you risk damaging your circular saw.
Tip Not all circular saws accept abrasive discs. Make sure that your circular saw model supports the use of abrasive blades. DO NOT use abrasive blades on a table saw to cut metal. It is a dangerous practice.
Masonry Concrete Cutting Blades
For cutting concrete, a diamond blade such as a segmented or turbo rim blade is essential. Much like with woodworking, the specifics depend on what you need the concrete to look like afterward.
If you just need aggressive, speedy cutting, then go for a segmented blade. If you want a bit more precision, a turbo rim blade is the best option for cutting through concrete with some precision.
Abrasive discs can also be used for light-duty masonry work. One advantage of the abrasive blade is that they are much cheaper when compared to diamond blades. However abrasive disc wears out pretty fast and requires a lot more time to accomplish your task. The most efficient circular saw blade for concrete and tiles cutting is a diamond blade designed for wet cutting.
Circular Saw Blades Infographic
See the infographic below that represents the best blade for each type of work.
So many people invest so much thought into what kind of circular saw they are going to buy for a job that they forget to think about what sort of blade they are going to use. By using this guide, you can make an informed purchase about what circular saw blades to use for each job; which will save you time and money down the road.
Can I use the circular saw blade on a table saw?
Yes. However, using a circular saw blade on a bench saw has its pros and cons. Advantages Thin Kerf: Since the circular saw blades are thin, they require less power to cut through. The thin kerf also produces less sawdust and result in more usable wood.
Inexpensive: The circular saw blades are cheap compared to table saw blades.
Disadvantages Depth of cut: Circular saw blades generally available from diameter 4-1/2 inches to 7-1/4 inches. If you use this smaller diameter blade on your 12 inches table saw, you will end up with a shallow depth of cut.
Circular Saw blade direction, which way?
A Circular saw is designed to cut upwards. That means unlike the table saw, the direction of blade rotation is anti-clockwise. Nearly all the manufacturers have the direction marked on the blade guard. All you need to do is to make sure that the directions of arrows on the blade and on the saw body are in the same way. Look at the image below for explanation. Installing the blade in the wrong direction will result in damaged cutting edges and excessive heat.
How to change circular saw blade?
Replacing the blade on a circular saw is pretty simple. Here are the steps:
- Unplug your circular saw. If it is battery powered, remove the batteries.
- Find the blade lock. Nearly all the circular saws have an arbor lock switch.
- Push the blade lock and slowly rotate the blade with your other hand until the blade lock mechanism engages.
- In some cases, you may have to push the lower guard back.
- Use the correct wrench to remove the arbor nut (blade stud) while holding the blade lock button.
- This is a normal right-hand thread nut. So you have to loosen the nut by rotating in the anti-clockwise direction, which is the same direction the blade rotates.
- Remove the washer and lift the blade slightly up to remove it from the arbor.
- Blow air and clean the inside of upper and lower guard.
- Slip in the new blade. Make sure that the blade teeth are in the right direction.
- Place the washer and lock the nut/blade while the blade lock is engaged.
Here is a video that explains the process.
Tip: Before you put the blade stud back, put a drop of oil on the threads to make sure that they don’t get rusted and you can easily unlock the nut next time.
Can I sharpen the circular saw blade?
Yes. Ideally, you should do it on a tool and cutter grinder or use a special blade sharpener. How severely the cutting edges are just dull and not severely damaged, you can sharpen the blade by yourself. You can use file and oil stone to sharpen the standard wood cutting blades that are made out of steel. Here is a video that explains the process.
You could also mount the blade in reverse direction on a table saw and move the blade up until it touches an oil stone that is fixed on the table. Here is an article on sharpening the blade with oil stone. Carbide tipped blades: If you have a diamond wheel you can fix that on your table saw and touch the carbide tips to make them sharp. However, I do not recommend this to novice users since it can be dangerous and may cause injury. Send your carbide blades to a professional resharpening service provider to get the best result.
- Types of circular saw blades
- Blade Selection Guide
- Standard circular saw blades
- Abrasive blades
- Diamond Blades
- Blade size
- Woodworking Blade
- Blade for Plywood
- Circular Saw Blade for Metal
- Masonry Concrete Cutting Blades
- Circular Saw Blade FAQ
Circular Saw: How to Choose the Best for your Circular Saw
Going with one type of blade or the other for your circular saw requires in-depth thinking and consciously weighing the available options. Numerous factors contribute to the final product you decide to go with, and these factors will have a tremendous effect on the performance and lifespan of your machine in the long run. The article guides you in choosing the best blade for your circular saw between the options available.
Table of Contents
- 1.1 Types of Circular Saw
- 1. The Abrasive Saw
- 2. The Biscuit Joiner
- 3. The Cold Saw
- 2.1 What is a Carbide Tipped Circular Saw?
- 2.2 What is a Diamond Tipped Circular Saw?
- 2.3 Which Works Better?
- How to Choose the Perfect Blade?
- 1. Oil the Blade Frequently to Avoid Dullness
- 2. Buy Coated Blades
Section 1: What is a Circular Saw? And its Common Types.
A circular saw is a power saws using a toothed or abrasive disc or blade to cut different materials using a rotary motion spinning around an arbor.
Circular saws came into the scene in the 18 th century but only received extensive usage in the United States in the early 19th century. There are numerous types of circular saws, and in recent times the term circular saw has been used to describe any saw with a round blade that rotates on an arbor.
1.1 Types of Circular Saw
As earlier said, there are numerous types of circular saws. This is not enough if we don’t discuss some of them in this article. Because apart from the traditional circular saws, other kinds of saws use the circular saws blade, putting them into the category.
This guide will help you identify other saws types that use the circular blade and differentiate them from other models. Here are some of the most common types of saws with circular saws:
The Abrasive Saw
The abrasive saw is also referred to as the Chop or Cut-off saw primarily because it is useful in cutting actions on hard materials.
An abrasive saw is a competent machine that cuts through hard surfaces such as concrete, tiles, and metals around the home and in construction projects. The abrasive saw is a standard power tool used during construction projects to cut through the hardest parts of a metal material or other hard surfaces.
The Biscuit Joiner
The Biscuit joiner is a powerful tool for combining two pieces of wood. A biscuit joiner uses a circular saw blade to cut a hole in the opposite edges of two pieces of wood.
This circular saw is mainly used in woodworking tasks and is handy in home construction or interior decoration. It is used by carpenters and other woodworkers who need to join one piece of wood to the other.
The Cold Saw
The cold saw is the direct opposite of the abrasive saw. It is a circular saw designed to cut through metal materials using a toothed blade to transfer heat generated while cutting. Thereby allowing the circular saws blade and the cut material to remain as calm as possible.
A cold saw is usually equipped with an electric motor and a gear reduction unit to help reduce the speed of the circular saw blade while cutting through metal.
Section 2: What is the Difference Between a Diamond and Carbide Tipped Circular Saw?
A circular saw can be fitted with two blade tips that are effective in their different service areas. Whether you own a circular saw for personal or commercial uses, it is vital to understand what blade tip your machine is critical. This knowledge helps you to work with your circular saw more effectively.
2.1 What is a Carbide Tipped Circular Saw?
Carbide-tipped circular saws are very common in the industry today. They include saw blades, lathes, drill bits, and other relevant cutting tools. Carbide-tipped circular saw blade generally stays sharp for longer than regular steel-tipped saw blades.
Although in the long run, carbide-tipped circular saws also get dull. They can also be brought back to life like you do the steel-tipped saw blade. The only difference is the abrasive used to clean the blades.
- Also known as the Square top tooth saw, carbide-tipped saws are famous for heavy-duty cutting. The carbide steel is perfect if you need to cut through some of the hardest materials and have tons of them, as it can stay sharper for longer periods than regular steel.
Carbide-tipped saw blades are also effective in precision cutting and are used mainly by woodworkers who need to make accurate cuts.
A carbide-tipped saw is also appropriate for cabinet or furniture-making as they require minimal tear-outs.
2.2 What is a Diamond Tipped Circular Saw?
While diamond-tipped circular saws are not as popular in the industry as carbide-tipped saws, it is equally effective and a choice alternative for numerous active users.
When you use a diamond-tipped blade for your circular saws, you can rest assured that your machine is in for the performance of a lifetime and optimized service life. Diamond-tipped circular saws are usually best for cutting through the hardest concrete materials without fearing wear and tear for a long period.
Functions of a Diamond-tipped Circular saw.
- Diamond-tipped circular saws are used to cut through the hardest materials because they are equipped with diamonds. It is the hardest material known to man and can cut through anything.
A diamond-tipped circular saw is perfect for cutting through tiles, masonry, and other hard materials.
A diamond-tipped circular saw is also perfect for cutting through concrete because it is generally more durable than any abrasive blade.
2.3 Which Works Better?
Choosing the better type of circular saw between diamond-tipped and Carbide tipped saws is a complicated affair as they’re both effective in their rights. While the Carbide tipped circular saw is particularly effective in cutting through metal materials, the diamond-tipped circular saw is ideal for cutting concrete.
It is equally essential to include that the diamond is the hardest material known to man to date. And when machines such as the circular saw get fit with diamond edges, they become unstoppable against some of the hardest materials known to man.
On the other hand, the Carbide tipped circular saws blade is more widely used in the mainstream market and by the construction industry.
How to Choose the Perfect Blade?
Choosing the perfect blade between a carbide tip and a diamond tip is very straightforward, but you still need to be careful. Because the two blade types are best suited for use in different situations.
The diamond tip circular saw is perfect for cutting through the hardest materials, which can be found in the construction, military, and other heavyweight industries. The diamond-tipped circular saws blade is the best bet for heavy-duty cutting.
On the other hand, the Carbide tip circular saws are perfect for wood cutting and other precision cutting endeavors. Which do not require intense tear-outs, making it perfect for use around the home and in your kitchen.
The Diamond tip circular saw is the best circular saws for commercial purposes, while the carbide-tip circular saw is best for personal or mild uses. So when in the market for the best blade tip for your circular saws, it is best to consider the uses for which you will deploy them as a guide to choosing the perfect blade.
Section 3: How to Properly Care for Your Circular Saw Blade
The blade is one of the most critical parts of your circular saws. Whether diamond-tipped or Carbide tipped, without the proper care, the blade of your circular saw is bound to wear off after some time. And thereby take a chunk of your machine’s service life.
Here are the necessary steps to take to give your circular saws machine the proper care and attention:
Oil the Blade Frequently to Avoid Dullness
One of the best ways to keep the blade of your circular saw sharp and useful for an extended period is to frequently apply grease. Consistently cleaning your blade edges with grease or oil will remain very sharp and avoid rustiness as much as you want.
Buy Coated Blades
Another effective way to care for the blade of your circular saw is to soak it regularly in a washing solution or kerosene.
Soak it in these liquids overnight and watch the blade of your circular saw glow in the mornings like a flower.
The three methods discussed above have proven effective in cleaning up the blade of your circular saws and preserving it for consistent use inside and outside the home.
Section 4: Summary
The circular saws are an umbrella name for various saws machines that accomplish tasks by rotating around an arbor. You need to know that a sizeable majority of circular saws are useful in accomplishing similar tasks, and the power tools are very dependable on the job.
Whether you choose a Diamond tipped or Carbide tipped circular saws. You can rest assured that your circular saws will cut through the hardest materials whenever possible. Please feel free to contact us if you have any needs.
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Types of Concrete Saw Blades
The potential tool used for cutting concrete, bricks, asphalt, and other solid materials is a concrete saw. It is often referred to as a road saw or Consaw. Concrete saw blades are diamond-tipped due to their fast cutting of hard materials. Concrete saws are more efficient than conventional saws.
Concrete saw blades are essential for the construction industry. It is used consistently and efficiently to cut concrete and another masonry.
In today’s market, there are various types of concrete saw blades available. The cutting blade selection depends on the depth of the concrete you are cutting. All concrete cutters serve the same function, while some of others are more durable and reliable than others for quality work.
In this article, we’ll discuss different types of concrete saw blades. Here you will also know the various methods of sawing concrete.
Methods of Sawing Concrete
There are two different methods of sawing, which are:
Dry Concrete Sawing
For outdoor projects, the dry concrete sawing method is better as it creates a lot of dust on the sawing site. If it consists of a diamond, the blade of the Saw’s blade can be kept cold in the absence of water.
A diamond blade can contribute to decreasing the build-up of dust. This technique involves making brisk cuts that are very small and are progressively made deeper to avoid the edge from heating.
Wet Concrete Sawing
Wet concrete sawing is an eco-friendly method of sawing as well as beneficial to the health of workers. It produces less dust due to the presence of water moisture.
The water in the wet sawing keeps the blade self-lubricating, cool and increases the its lifespan.
Six Types of Concrete Saw Blades
The various kinds of concrete saw blades used to cut concrete depend on the role for which it is being used. There are six common forms of commonly used blades.
Corundum Masonry Blade
Corundum masonry blades are used for short and shallow cutting. Concrete is a hard material to cut, and that is why the edge of masonry don’t last for longer. They quickly wear off or crack.
The blades of the Corundum Masonry Blade are possibly available at low cost but need more hard work. Cutting with masonry blades produces a lot of dust that makes the edges very hot. Their primary use is for shallow cuts.
Diamond blades are the most popular concrete saw blades for both wet and dry sawing. In concrete cutting, diamond saw blades are the most effective. These blades have a disc of steel that has a rim containing the diamonds.
BEST 14 INCH DIAMOND BLADE FOR CONCRETE
There are metal and diamond composite on the sides of the diamond blades. Diamond blades are used for more in-depth and longer cuts. They have serrated edges that, keep the blade cool during the cutting process when used for dry cutting. Although, It produces lots of dust.
There are different types of diamond blades to provide you the fastest and cleanest cuts.
Turbo rim blades are the traditional blades used to cut concrete. These blades with a serrated rim that cuts through rough and hard materials such as concrete and bricks.
The main reason why most professionals choose this unique concrete cutting blade is that it is more potent than other brands of continuous rim blades. However, even though the turbo-rim blade is reliable for cutting concrete, it does not leave a smooth finish because of the serrated rim.
Segmented blades cut concrete through their diamond edges. Also, this particular blade is built with a rim that uses gullets to break. Because of the segments it possesses, segmented blades are considered healthy and straightforward to use.
Besides, these segments often allow the blade to cut quickly than other kinds of blades designed for concrete cutting. You may use this same blade to cut other rigid materials, such as bricks, along with concrete cutting.
Abrasive blades are also popular forms of concrete saw blades used to cut concrete. The abrasive blades are also used to cut several tough rigid materials, such as bricks and even metal.
Abrasive blades do not have segments or edges like other forms of blades for concrete cutting. It is cut with the help of an abrasive material such as silicon carbide or aluminum oxide to cut hard hardened materials.
Circular Saw Blade
Circular saw blades are used to cut hard surfaces like concrete and bricks with an abrasive or diamond blade.
However, before you start cutting, it is necessary to set the depth of the circular saw. A circular saw effectively cuts concrete, and also leaves a smooth finish.
What is the Best Blade for Cutting Concrete?
Diamond saw blades are the best blade for cutting concrete. When it comes to making smooth, professional concrete cuts, it is the perfect blade for breaking concrete and asphalt. However, at a wide variety of price ranges, you’ll find countless blade choices within this group.
When you cut hard things, you need a soft, bonded diamond blade of concrete. You need a hard-bonded diamond blade when you cut soft material, like asphalt.
Your cutting won’t be perfect without a high-quality saw blade, whether you are sawing control joints, improving the concrete with elegant grading, or cutting off existing concrete for fixing or reconstruction.
You can not depend on only one kind of blade to do all cutting tasks correctly or perform the same job in different types of concrete blades.
These are numerous diamond cutting blades for concrete available in the market. If you choose to use some of these tools to cut concrete, you may be required to purchase the one that suits your needs or rent from a hardware store.