An angle grinder, also known as a side grinder or disc grinder, is a handheld power tool that can be used for grinding (abrasive cutting) and polishing. For a variety of different applications. While most people use an angle grinder to grind down metal or sharpen tools, they can also be great for cutting concrete. Although developed originally as tools for rigid abrasive discs, the availability of an interchangeable power source has encouraged their use with a wide variety of cutters and attachments.
If you’re looking to cut through concrete with speed and precision, then you’ll need to invest in the best angle grinder for cutting concrete. In this article, we’ll take a look at what factors you should consider when choosing an angle grinder as well as some of the best models on the market.
Editor’s Choice Top 3 Best Angle Grinder for Concrete Grinding
Now that we’ve gone over what factors you need to consider when choosing an angle grinder for cutting concrete, let’s take a look at 8 of the best angle grinder concrete grinding tools in this era!
1. Dewalt DCG412B- Best Angle Grinder for Cutting Bricks
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The most suitable angle grinders search starts with the Dewalt angle grinder. Its 8,000-rpm motor delivers the power you need to cut and grind concrete. It goes from 0 to full speed within a second, providing superior speed.
You will also have a quick-change grinding wheel release that eradicates the need to use tools when removing wheels. The guard is also tool-free. You can adjust it quickly and easily for more comfort. The 2-finger trigger switch makes it more comfortable to activate the tool.
A lock-off button is there that offers relaxed gripping. You cannot work with the grinder for long when you do not get a comfortable grip. Its 2-position side delivers a holder for better control, maneuvering, and flexibility.
The lightweight and cordless construction makes it more natural to carry and move. It also assists you to lift and serve for a long time without paining your hand muscles. The Lithium 20v battery provides a decent backup to generate that fast speed. To conclude, it can be the best concrete angle grinder for its high power, and heavy-duty comfort.
2. BLACK+DECKER – Best Angle Grinder for Polishing Concrete
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When you are about to start grinding, the BLACK+DECKER Angle Grinder can be a good starting one. It comes with a metal gear case that will protect the grinder from outside impact. You can enjoy its durability and longer life from it.
The 3 Point side handle allows you to set the holder to the maximum useful position. It assists you to get even better control no matter if you are left-handed or right-handed. Besides, the narrow body provides a more comfortable grip. It helps you operate the grinder for a long time.
Its lightweight and compact design helps to store and carry the grinder. You can take it in your bag and go to your working area without even feeling extra weight. It also features a spindle lock. You can change the accessories easily with maximum safety.
You will have a one-touch release switch that turns off the machine fast. In case of an emergency or any situation, this paddle switch will come in handy. To conclude, no matter if you need a grinder for preparation, grinding, cutting, sharpening, and removing, it will be a good option to pick.
3. Milwaukee 2680-20 M18 – Best Angle Grinder for Cement Cutting
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There are many brands on the market, but none compare to Milwaukee. Milwaukee is one of the most trusted names in tools, and their cordless grinders are some of the best on the market. The Milwaukee 2680-20 M18 18V Lithium-Ion 4 1/2 Inch Grinder is one of their top models and it definitely lives up to the hype.
The first thing that you’ll notice about this grinder is its compact size. This makes it perfect for maneuvering in tight spaces or for working on delicate projects where you need more control over your tools. The lithium-ion battery gives this grinder plenty of power while still being lightweight and easy to handle. The three position handle also gives you a lot of control and makes it easy to find a comfortable grip no matter what task you’re working on.
One feature that really sets this cordless grinder apart from others on the market is its metal gear housing. This protects your gears from damage even if you accidentally drop your tool. It’s a small detail that makes a big difference in terms of durability and longevity.
Another great feature is the built-in LED light which illuminates your work area so that you can see what you’re doing more clearly – no more fumbling around in dimly lit areas trying to finish up a project!
4. PORTER-CABLE– Best Angle Grinder for Grinding Concrete
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This PORTER 20V MAX Grinder comes into the market to solve the concrete grinding problem. When cutting a concrete sleeper with an angle grinder is your concern, consider this one. It features a high-performance motor that generates up to 8,500-rpm speed.
With this high power, you can perform aggressive cutting, removing, and finishing of the concrete like a pro. Its metal gear housing allows you to use the grinder for a long time by dissipating the heat. It prevents overheating and keeps your machine safe always.
The contoured over-molded handle offers a better grip to increase comfort. You can even get better control with this grip. Set the handle to your most convenient position to get more control and comfort.
It has a spindle locking system that provides a safe and easy wheel change. Tool-Free Guard assists you to modify the guard quickly. You do not need to hire a professional or use a tool to change the wheel or alter the guard. You will also have a 20V high-performance battery to support the speed. To conclude, when you want a complete package, make sure you consider this one for its durability, comfort, and performance.
5. Makita XAG04Z- Best Cordless Angle Grinder for Concrete Cutting
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The Makita XAG04Z 18V Angle Grinder features a BL brushless motor to remove carbon brushes. It keeps the motor cooler for a long time with higher efficiency. You can even get up to 50 percent longer battery run time for this feature.
Besides, it has an automatic variable speed change feature that will adjust the speed and torque according to need. It ensures optimum performance. The feedback sensing technology will turn your motor off when wheel rotation is forced to stop.
You will also have a soft rubberized grip which delivers additional comfort on the job. And it also ensures better control with better grip. A slide switch with a lock-on ensures the safety and easy grinding wheel change. The soft-start exceeds start-up reaction to deliver smoother start-ups. It also provides longer gear.
The spiral bevel gears offer a smooth rotation and better efficient energy transfer. You can get better results with the same energy. To conclude, it is undoubtedly one of the best grinders you can have for grinding concrete or other materials – including pipe, conduit and more.
6. Bosch 1375A– Best Angle Grinder for Cutting Concrete Slabs
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Bosch 4 1/2 Inch Angle Grinder is another excellent one for its amazing useful features. Its powerful 6.0 amp motor can generate up to 11,000 no-load rpm. You can do all kinds of professional cutting jobs smoothly with this high variable speed grinder.
Besides, it weighs only 3.75 pounds. You can comfortably carry and maneuver this 1375A Angle Grinder. The compact design allows you to control the grinder without paining your hand. You will also have a 2 side auxiliary handle.
Set the handle in your desired and suitable position for even more operator convenience. It supports both the left and right-handed person with the same benefits. Anyone can keep the machine in hand for a long time. The Service Minder Brush System turns the machine off when maintenance is needed.
It removes any guesswork and allows maintenance when necessary. The epoxy-coated design protects the grinder from debris, whereas the sealed switch keeps dust and debris away. It can be the most desirable angle grinder for cutting concrete slabs for its 5/8 inches to 11 inches spindle.
7. AVID POWER – Best Angle Grinder for Leveling Concrete
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AVID POWER Angle Grinder 7.5-Amp can be a good option if you need a high-power grinder. The 7.5 Amps motor offers 900W max output power. It can also generate a no-load speed of 11000 RPM that will fulfill the demand of different applications.
Slim and lightweight body makes it easy to move and carry. It also delivers better support and control when working. You do not even feel fatigued when using the grinder for a long time. It will be a good option if you want to work professionally on a big project.
Its modern design provides fast heat dissipation that keeps the tool cool even after heavy use. Besides, you will have an integrated lock on the disc. It enables easy abrasive wheel replacement with safety. The 2-Position auxiliary handle ensures better comfort.
It comes with a rubber handle for better control. And the protective cover prevents sparks and metal chips. Also, it helps stay safe from any accident and unwanted situation. Its safety trigger makes it even safer to use. To conclude, you will rarely find a good option like this one for its quality, comfort, and safety for high-power yet safe use.
8. Metabo HPT- Best Angle Grinder for Smoothing Concrete
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Up next is Metabo HPT Angle Grinder which is rich in features with advanced functionalities. The 6.2 Amp motor comes with 980W of max output power. You can use the grinder where high speed is necessary. It allows you to work with versatile projects, including concrete.
Besides, it comes with five grinding wheels to use when necessary. The 4.0 lbs weight provides better control and maneuverability. You can use the tool for a long time without experiencing any fatigue. The compact design makes it even easier to carry. A carrying case is there to help you carry the tool.
You will also have a lock that allows fast accessory changes. The left-mounted slide switch along with the quick-off feature offers additional safety to your work. Apart from that, its removable, forward-canted side holder offers better control for both the left and right-handers.
Besides, it features a smaller grip, so you can have a satisfying experience while working. It reduces fatigue as well. The new labyrinth design keeps dust and debris away. You always get a clean and clear working surface. The low-profile gear case allows you to work in a confined area. To conclude, it will be a good grinder for any grinding project for the power, flexibility, and comfort it offers.
How do you choose the best angle grinder for cutting concrete?
There are several things that you’ll need to keep in mind when choosing an angle grinder designed specifically for cutting concrete:
The first thing to consider is how much power you need. Angle grinders come in a variety of different sizes and wattage If you only plan on using your machine occasionally, then a smaller model should suffice but if you anticipate doing more heavy-duty work then choose accordingly.
Motor power determines the speed of the grinder. Make sure the power is high enough to generate enough speed to grind concrete. Otherwise, it might not operate effectively on concrete.
Another important factor is disc size, which is measured in inches. The most common sizes are 4 ½” and 5” but some larger models can accommodate 6” and 7” discs. You know larger disk size can make the work faster but as for beginners it would be tough to handle. So we never recommend starting your journey with a larger angle grinder wheel for concrete grinding.
Most angle grinders have adjustable speed settings that allow you to control how fast the disc spins. This is important because it allows you to tailor the machine’s performance to the specific task at hand. For example, if you’re just doing some light grinding then a lower speed setting will suffice but if you’re trying to cut through thick concrete then you’ll need to crank up the speed.
The side handle should be adjustable and comfortable. It would be best if you placed the handle in different positions for better control. Also, if you are a left-hander, a non-adjustable handle might not work at all.
Type of abrasive
For most concrete-cutting applications, you’ll want to use an abrasive designed specifically for cutting concrete or masonry. These discs are usually made from silicon carbide or diamond and can quickly grind through even the toughest materials.
Wheels with ridges
Some abrasives come with wheels that have ridges running along their circumference. These ridges help remove material faster by creating mini channels as they grind away at concrete or masonry surfaces.
Comfort and grips controlling
Another factor to consider is your own comfort level. Angle grinders can be quite powerful, so it’s important to choose one that feels comfortable in your hands. If you have small hands, look for a compact model; if you have large hands, you might prefer a larger model with a more substantial grip.
To get better gripping, you should always look for a rubber grip. Also, the grip should be thin enough so that you can have comfort.
What are the different types of abrasive discs?
There are different types of abrasive discs that are commonly used with angle grinders: cut off wheel, grinding, flap and sanding discs.
Each type of disc is designed for a specific purpose and should only be used for the intended application. Using the wrong type of disc on a certain material can damage both the grinder and the material being worked on.
These are usually made from aluminum oxide or silicon carbide. They are specifically designed to cut through metals without excessive heat build-up, which can cause warping or other damage. Cur off discs typically have a maximum speed rating lower than other types of discs due to their design and intended use.
When selecting a metal cutting disc, always choose one with a speed rating that matches or exceeds the no-load speed rating of your angle grinder.
Grinding wheels are thicker than cut-off wheels and have a cup-like shape with a depressed center. They are generally used for grinding down metal surfaces or removing rust and paint from objects. The grinding action is produced by the contact between the wheel’s surface and the object being worked on.
A flapper wheel is the most popular type of abrasive disc. It is made up of overlapping pieces of sandpaper or other abrasive material, mounted on a metal or plastic backing plate. The flap disc spins at high speed and wears away quickly, making it ideal for cutting concrete or other hard materials. Flap discs can be used on both portable and stationary grinders.
These are usually made from aluminum oxide, zirconia alumina or silicon carbide abrasive material. They’re designed for use on wood, plastic and fiberglass surfaces. Sanding discs typically have a higher maximum speed rating than metal cutting discs because they’re designed to cut as aggressively. Select a sanding disc that has a speed rating that meets or exceeds the no-load speed rating of your angle grinder.
How do you prepare the concrete surface for cutting?
Cutting concrete is a tough job, but it doesn’t have to be difficult. Here are a few tips on preparing cutting concrete with angle grinder:
- One of the most important aspects of cutting concrete is preparing the surface correctly. If the surface isn’t level or smooth, it will be more difficult to get a clean cut. The best way to prepare a concrete surface for cutting is to use a power trowel or hand float to create a smooth, level surface.
- When cutting concrete with an angle grinder, you need to use a blade that is specifically designed for cutting concrete. This type of blade will have diamonds embedded in the metal base and will be labeled as being for “masonry” or “concrete.” Be sure to choose a blade that is compatible with the size and model of your angle grinder.
- If you’re using an angle grinder with a diamond blade, you’ll need to score the concrete first before making your cut. This can be done with a chisel and hammer or by using a carbide-tipped scoring tool. Once you’ve scored the concrete, slowly move the blade forward while applying gentle pressure. Keep the blade moving forwards until you’ve finished your cut.
- When cutting through thick sections of concrete, it’s best to use an electric wet saw with a diamond blade. These saws are designed specifically for cutting through hard materials and can make short work of even thick slabs of concrete. Be sure to wear eye protection and gloves when using one of these saws as they generate large amounts of dust and debris.
However, no matter what type of angle grinder you use, always be sure to wear eye protection and gloves. Cutting concrete can be a dusty and dangerous job, so it’s important to take all necessary precautions.
What are some safety tips to follow when using an angle grinder?
When it comes to using any type of power tool, safety is always the number one priority. This is especially true when using an angle grinder, which can be a very dangerous tool if not used correctly. There are a few safety tips that you should always follow when using an angle grinder:
- Wear the correct PPE: When using an angle grinder, you should always wear the correct personal protective equipment (PPE), including ear protection, eye protection and gloves.
- Keep the guard in place: The guard on an angle grinder is there for a reason, so make sure you keep it in place and in good condition at all times. If the guard becomes damaged or is not properly positioned, do not use the machine until it has been fixed.
- Be aware of what you are cutting Be careful not to cut into anything that could cause sparks or other debris to fly into your face or body. Always be aware of what is behind and around your work piece to avoid accidents.
- Do not force the tool: If you find that the angle grinder is not cutting as quickly as you would like, do not try to force it by applying more pressure. This could cause the blade to break and fly off, leading to serious injury. Instead, use a different blade or disc that is better suited for the material you are trying to cut.
- Always unplug the tool when changing blades: Never change the blade on an angle grinder while it is still plugged in. Always unplug the machine and make sure it is completely stopped before changing or adjusting any of the parts.
- Use the correct blade: Make sure you are using the correct blade or disc for the material you are trying to cut. Using the wrong type of blade can damage the angle grinder and cause serious injury.
Follow these simple safety tips and you will be able to use your angle grinder safely and effectively, without putting yourself at risk of injury.
People Also Want To Know These Questions: (FAQs)
Can I use angle grinder to grind concrete?
If you’re wondering whether an angle grinder can be used to grind concrete, the answer is yes! Angle grinders are a versatile tool that can be used for a variety of different applications, including grinding concrete. Though concrete is a tough material and requires a powerful tool to grind it down, but an angle grinder is the perfect tool for the job. It’s important to choose the right model of angle grinder for your specific needs.
What size angle grinder to cut bricks?
The size angle grinder you will need to cut bricks will depend on the thickness of the brick. If the brick is thin, then you will need a small angle grinder. If the brick is thick, then you will need a large angle grinder. However, as a general guide, we would recommend using a 4-inch or 5-inch angle grinder with a diamond blade for cutting bricks.
When was the angle grinder invented?
The first angle grinder was invented in 1954 by Ackerman and Schmitz. Source: WikiPedia
Can an angle grinder be used as a polisher?
Angle grinders are not typically used as polishers, because they can damage the surface that you are trying to polish.
However, if you are careful and use a lower speed setting on your angle grinder, it is possible to use it as a polisher. Just be sure to avoid using too much pressure, which can cause the grinder to gouge the surface.
Can I use a wire brush on an angle grinder?
Yes, a wire brush can be used on an angle grinder. But it is important to use the correct type of brush and to follow all safety precautions. The wrong type of brush or incorrect usage could damage the angle grinder.
Should I wet concrete while grinding?
Yes, you should do it before starting the grinding process. Wet concrete grinds more easily and produces less dust, which can help to reduce respiratory irritation and other health problems. In addition, wet concrete is less likely to damage the equipment being used for grinding.
What amp angle grinder do I need for concrete?
The most common amperage for an angle grinder used on concrete is between 4 to 6.
You know, an angle grinder is a powerful tool that can be used for a variety of projects, including cutting, grinding, and polishing.
As you can see, there are a lot of things to consider when choosing the best angle grinder for concrete grinding. But if you keep the features we’ve discussed in mind, you’re sure to find a model that will suit your needs perfectly.
We have portrayed some good grinders designed for concrete cutting with their features, pros, and cons. Find your match and enjoy tension free grinding tasks as like pro.
Update logs: _____________ 21.08.2022 Updated/Added product: 1. Milwaukee 2680-20 M18 18V Lithium Ion 4 1/2 Inch Cordless Grinder 2. Makita XAG04Z 18V LXT®