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Any DIYer or professional handyman needs to grind, file, cut, or bur flat wood surfaces and metals at one point in time or the other. Angle grinders are the perfect power tools for this purpose.
When working with these tools, electricity issues often crop up as power might not be readily available where the device is needed. Hence, cordless angle grinders are a must-have in the toolbox of any DIYer, professional woodworker, plumber, or handyman.
Cordless angle grinders make a lot of tasks very easy. They range from cutting pipes, carving woods, and cutting tiles to crafting furniture, amongst others. Not to mention the fact that their cordless nature ensures you do not worry about a power outlet all the time.
Now, cordless angle grinders sound like the real deal. Indeed, they are! However, there’s a slight problem of knowing which battery-operated angle grinder to buy as there are many options available in the market.
Trust us; if you do not go for the right choice, it is as good as not having a cordless angle grinder at all as you are most likely going to get frustrated while using the tool.
To ensure you make the best choice, we have made a list of the top five (5) list of the best cordless angle grinders. To make it even better, we have added a brief guide to help you know the features to look out for when searching for a cordless angle grinder.
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Related Read — Best Corded Angle Grinders
Best Cordless Angle Grinders
1. Milwaukee 2780-20 M18
More detailed review ↴
The Milwaukee 2780-20 is the first grinder on our list, one of the best things about this tool is that it can be used with multiple Redlink batteries.
You can use this grinder for the toughest grinding, surface preparation, and cutting applications. This efficient system results from such outstanding features as the powerstate brushless motor, ensuring that you do not worry about brush wear and tear and consequently guarantees 10X more motor life.
If you need a machine that fits easily into your hands while working, this one also meets the requirements. It features a thin body design that makes it optimized for this purpose.
Grinding, cutting, and surface preparation are very mechanical processes; it is only fair that you carry them out with a comfortable tool like the Milwaukee 2780-20 M18.
While working, be rest assured that you are protected from debris and dirt being produced as you work because it has a guard to block off all these. More importantly, the tool allows you to attach and detach the working accessories depending on the purpose the angle grinder is serving without having to use any tools.
When we took a look at this tool generally, it appears to be a very decent tool. We expect any individual to derive maximum satisfaction from making use of it.
- RedLink Plus Intelligence: There is constant communication between the tool, the battery, and accessories to prevent overheating, power overload, etc. This intelligence guarantees durability.
- Tool-Free Accessory Changes: This guarantees less downtime during work as you don’t need tools to change the accessories.
- Power State Brushless Motor: There are no brushes in the engine; this guarantees a longer motor lifespan; durability!
- Bareness: It is compatible with all M18 batteries.
- Paddle-switch Design: This makes it easy to use.
- The handles are a little short and might not allow you to see what you are doing because of the guard.
2. BOSCH GWS18V-50
More detailed review ↴
Trade professionals looking for a cordless grinder with a moderate power capacity to fit smaller jobs have found a perfect match in the Bosch GWS18V-50 angle grinder. Electricians, plumbers, woodworkers, and other trade professionals can all find it very invaluable.
The entire length is about 11-inches; this makes it very portable and easy to handle while carrying out tedious tasks. One should not mistake this machine’s mobile nature for weakness as it features a four-brush motor design making it fit to take on a couple of heavy-duty projects.
The Bosch brand prioritized safety while manufacturing this angle grinder. The brand incorporated features such as the restart protection and two-position handle to ensure this.
The restart protection ensures that the grinder doesn’t just go off on the ground or any other surface. It is placed when power gets toggled when the tool is in the “on” configuration, thus preventing the cutting disc’s damage or any attachment on the grinder.
- Adjustable Vibration Handle: You can fit the handle in two different angles to align correctly with the work area.
- Durable: The motor has four brushes which can give the tool a longer life.
- Safety-Conscious: It has restart protection, a burst-resistant wheel guard, and a two-position handle, which all help to ensure the safety of the tool and the users.
- Tool-less Quick-change: It makes it easy to change the tool accessories.
- Electronic Cell Protection
- Adjusting the guard angles is quite tricky.
3. DEWALT DCG413B
More detailed review ↴
The DeWalt DCG413B 20V is on our list of the top 5 best battery-powered angle grinders because its features ensure safety and user protection as well as durability.
The tool features DeWalt’s grinders brake stop to ensure safety and user protection, which helps brake stop the wheel in 2 seconds or less. Furthermore, to ensure tool safety, it features a kickback brake engaged once the tool senses an abnormal event. The kickback brake system quickly reduces wheel movement and shuts off the grinder when such an event is discovered.
On the other hand, to ensure durability, the tool features DeWalt’s E-Switch protection, ensuring that the device is protected if there is a voltage overload or a power outage. If any of these or any other electrical issue occurred, you would need to cycle the trigger switch, i.e., turn it off before turning it on.
It also features a brushless motor design that, of course, ensures that you need not worry continuously about changing brushes. More so, the brushless design prevents electrical faults within the motor, further facilitating durability.
Ease-of-use was also well thought of in the design of this tool. It features an arbor and nut design which allows you easily remove and fix the discs and accessories to be attached to the grinder. The nut can be tightened by hand quickly, and the spindle lock can be easily held down by hand to detach any accessory.
- High Speed: It can go as fast as 9000 RPM.
- Durable: Features a brushless motor design, E-switch protection, and 2-state switch design, which makes it durable
- Good Runtime: It lasts for an adequate amount of time.
- Easy to Use: It is effortless to use the tool as well as change discs and accessories.
- The tool lacks a guard for protection when using the grinder as a cut-off tool.
4. Makita XAG20Z
More detailed review ↴
The Makita XAG20Z cut-off angle grinder is a great tool that stands out for its extreme versatility. You can use it together with all standard cut-off grinding wheels, brushes, etc.
It puts the user in the driver’s seat and complete control with the variable speed control dial. The variable speed control dial allows you to adjust the RPM of the tool manually. This way, you can be sure of going in on any material at just the right speed, thus contributing to its versatility.
It also features star-protection computer controls, which allow for continuous communication between the tool and the battery throughout work periods. This technology implies that the device and the battery can exchange data to facilitate the monitoring of working conditions so that conditions such as overloading, over-heating, over-charging, etc., can be spotted from a mile away and prevented. What this means for your tool is durability.
Users have claimed that this cordless tool by Makita is simply a corded tool that comes without the cords. They claim that the power being generated by its brushless motor does ensure a longer runtime and work hours. The power generated by this motor makes cutting or grinding materials like pipes, tiles, wood, concrete, amongst other rigid materials, a mere walk in the park.
The Makita brand also made safety provisions catered for such concerns as durability, speed, and power with the core features.
The XAG20Z angle grinder features an electric brake that halts the wheels in a little less than 2 seconds once the need arises. It also has an electronic control on the torque; this control stops the motor once the tool senses an opposing force on the wheel.
- Adjustable Speed: You can manually adjust the RPM, making it suitable for various purposes.
- Fast Charge: Lithium-ion slide-style batteries charge very fast.
- Battery-Tool Communication: The star protection computer controls help to spot and prevent working conditions that might cause a tool’s fault.
- Quick To Halt: It features electric brakes that help the wheels stop in less than 2 seconds.
- Longer Run-time: The brushless motor lets the tool run continuously for a more extended period
- It doesn’t come with a case.
5. DEWALT DWE402
More detailed review ↴
As usual, DeWalt brought their A-game with the manufacture of a fantastic power tool in the DeWalt DWE402 angle grinder tool. Although it weighs just about 6.2 pounds, the power it generates makes you wonder if such a small device could create that sort of energy as it features an eleven (11) amp AC/DC 11000 RPM motor; The DWE402 has a very decent weight to power ratio.
The DWE402 features a dust ejection system that ensures dirt and debris don’t gather inside the tool. Dust from wood, pipes, and other metals which the device works on are ejected from the tool through this system. This ensures durability.
Another cool feature that ensures this tool’s durability is the auto-off brushes that shut down the device when the brushes are worn out and need changing. This feature prevents the possible faults that may arise as a result of working with worn-out brushes.
While making use of the tool, you are sure to have a great time as it has an ergonomic design alongside other cool features that make it pleasant to use. Amongst these is the fast and seamless change wheel release. With this, you do not need tools like wrenches to change the wheels and other accessories.
It also features an ergonomic side handle which gives you a super comfortable feel when working.
Finally, DeWalt considers the safety of the user in that this tool comes with a one-touch guard. The guard rotates through 360 degrees allowing you to place it at different angles depending on your workspace requirements.
- Powerful: It has an 11-amp AC/DC 11000 RPM motor.
- Lightweight: The tool weighs just about 6.2 pounds
- Quick and Seamless Disc Change: The quick-change wheel release technology makes it easy to change accessories.
- The guard is somewhat too big.
Best Battery-Operated Angle Grinders – Buyer’s Guide
Generally, angle grinders are a set of power tools that one can use for diverse purposes. Once you change the wheels’ attachment or accessories, a cutting tool can quickly become a filing tool.
As a result of this fact, there are many tools out there when you go searching for the best battery-powered angle grinder tool. These various tools have distinct features that make them suitable for some purposes than others.
A tool might be better suited for cutting than filing, for instance. Therefore, you need to know which features you need to fit your work to avoid paying for parts that are of no use to you.
In our experience, it is advisable to go for a very versatile angle grinder. A versatile angle grinder will, of course, have a wide range of features. We will talk about those features to look out for in this guide.
Related Read — Best Die Grinders
Fast Change Wheel Release
A versatile angle grinder tool is expected to be usable with lots of accessories. This fast change wheel release makes the device fit for cutting, filing, drilling, etc.
If you seek this kind of tool, you should look out for how easy it is to change, i.e., remove and fix the wheel’s attachments.
The ideal tool should have a fast and seamless attachment change process. Also, it should require no extra tools or wrenches. You should be able to change the accessories with your hands.
This feature helps save more time to work on the job rather than focus on working the tool itself.
Adjustable Speed Dial
Considering that you intend to use the tool for various purposes, we strongly advise that the ideal tool for you should be able to allow you to adjust the operating speed.
The best battery-operated angle grinders have a wide range of working speeds. They also allow the user to choose and adjust the operating speed of the tool manually. This functionality makes it easy to take on various forms of project.
An adjustable speed dial helps you work with optimal speed under all circumstances.
Related Read — Belt Grinders Review
Whether the machine features a brushed or brushless design, the most important thing is that the motor generates enough power to guarantee a longer tool runtime.
In most cases, brushless motors are ubiquitous amongst the best cordless angle grinders. This commonness is, of course, because brushless motor guarantees durability. After all, you no longer need to worry about changing brushes or any other faults that may arise because of working with worn-out brushes.
Nonetheless, some machines with the brushed design feature multiple brushes and even auto-off brushes that take care of this. Thus irrespective of the invention, the motor’s power is a more critical factor to be considered.
The safety of the tool and the user should be well taken care of by the device.
You need to look out for features that guarantee your safety and the safety of the tool to ensure its durability.
The safest tools always have a guard to help protect the user from dirt and scraps generated during the work process. It is even better to be able to rotate such guards at various angles to fit into any workspace or area.
Features like the kickback brake, which helps bring the wheel to a halt in a little less than 2 seconds, and the E-switch protection design should be looked out to cater to the tool’s safety.
The E-switch protection design helps to take care of any electronic power outage issues that might harm the tool’s electronic system. Once such problems are noticed, you must turn off the device and then turn it on before you can continue using the tool. Doing this takes care of the situation.
Fast Charge and Longer Battery Life
Well, this goes without saying. A battery-operated tool relies on batteries as the power source, and so those batteries must charge fast and last long enough to help you get your work done.
The Lithium-ion battery system is one of the most reliable battery systems in the market. If you are looking to buy a battery-powered angle grinder, if it has a Lithium-ion battery system, it is most likely a good buy.
It charges fast and lasts long hours. It also often maintains an adequate connection with the tool itself to sense any issues of over-heating, overloading, etc., that could harm the device in general and shut down at the right time.
Related Read — Can You Use Angle Grinders To Smooth Concrete?
Finding the best battery angle grinders shouldn’t be an issue any longer as we have taken our time to come up with a comprehensive top 5 list of the best tools in the market.
Amongst these five (5), the Milwaukee 2780-20 M18 comes out on top as our number one cordless angle grinder. It is highly efficient, safety-conscious, powerful, and easy-to-use.
Whether you are looking for something ideal for cutting, filing, or burring plastics, pipes, metal, or wood, any pick on this list should get the job done for you perfectly.
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