An angle grinder is called a tool for all life occasions. This beast can do a whole set of jobs, from cutting to polishing. The wireless model, which can be used anywhere, provides even more possibilities.
When choosing the best cordless angle grinder, I recommend considering your production needs and the product’s functionality. DEWALT DCG413B is the perfect option for me.
Do you want to optimize the work process in your home workshop or during repairs? Then you should think about purchasing this miracle tool. I’ve listed top models and advice to help you make an optimal decision.
Contents
- 1 9 Best Cordless Angle Grinders Reviewed
- 1.1 1. DEWALT DCG413B: Best Angle Grinder Cordless for Safety
- 1.2 2. Milwaukee: Best Cordless Angle Grinder With Side Handle
- 1.3 3. DEWALT DCG416B: Best Angle Grinder Battery-Powered for Renovation Tasks
- 1.4 4. Makita XAG04Z: Best Wireless Angle Grinder With Battery Control
- 1.5 5. Craftsman: Best Rechargeable Angle Grinder for Aggressive Applications
- 1.6 6. Greenworks: Best Angle Grinder Cordless With 4 Ah Battery
- 1.7 7. KIMO: Best Wireless Angle Grinder With 1,000 Hours of Battery Life
- 1.8 8. KOBALT: Best Battery-Powered Angle Grinder With Anti-vibration Technology
- 1.9 9. Worx WX812L: Best Rechargeable Angle Grinder With Slim Design
- 2 Buyer’s Guide Cordless Angle Grinder
- 3 How I Chose the Best Cordless Angle Grinder
- 4 FAQ About Cordless Angle Grinder
- 5 A Tool for All Occasions
9 Best Cordless Angle Grinders Reviewed
- DEWALT DCG413B — Top Pick
- Milwaukee — Runner Up
- DEWALT DCG416B — Great Value
- Makita XAG04Z
- Craftsman
- Greenworks
- KIMO
- Kobalt
- Worx WX812L
In this review, I will tell you about nine models to consider when looking for your best battery-powered grinder.
1. DEWALT DCG413B: Best Angle Grinder Cordless for Safety
Specifications:
- Brand: DEWALT
- Material: Blend
- Style: 20V Brushless 4-1/2″ Grinder (Tool Only)
- Power Source: Battery Powered
- Item Dimensions: 12.2 x 4.7 x 6 inches
When I need a quality product, I turn to proven manufacturers. For me, DEWALT has been such a brand for many years, with almost a hundred years of history and relevant experience. The tools from DEWALT allow you to improve work processes on large construction sites and in-home workshops, including mine.
This lightweight 4.5″ wireless angle grinder can be an indispensable helper for many craftsmen. I use it for cutting both steel and concrete. The tool has a brushless motor which protects the machine from rapid wear.
But the most important thing for me is attention to safety while working. It takes only two seconds or less for the brake to stop the wheel. If the tool feels pinched, blocked, or twisted, the recoil brake is instantly activated. Also, I have used the E-Switch protection in case of a shutdown. I recommend it due to its being user-friendly and performing its primary functions perfectly.
- Brushless motor;
- The brake is activated in an average of 2 seconds or less;
- E-Switch protection;
- The kickback function significantly reduces recoil.
- Battery and charger are not included;
- The safety of the trigger might be difficult to turn at first.
2. Milwaukee: Best Cordless Angle Grinder With Side Handle
Specifications:
- Brand: Milwaukee
- Material: Plastic
- Item Dimensions: 16.1 x 6.7 x 5.3 inches
- Style: Adjustable
- Power Source: Corded Electric
I respect this brand, which was also among the first designers of electric tools. Milwaukee started in 1924 and became famous as the maker of the iconic “Hole-Shooter” one-handed drill. Since then, it has been an example of innovation and consistent quality for many successors.
Today, the company focuses on developing cordless tools with replaceable batteries. I have repeatedly seen this machine in operation and tested it myself during some projects.
This 4.5″ rechargeable angle grinder supports the M18 battery and allows you to perform cutting, polishing, wire brushing, etc., with the ability to reach hard-to-reach places. Control is provided by a paddle switch and a side handle that can be set in three positions. A significant bonus is that the device has L-shaped intake holes that prevent debris from getting inside.
- 4-pole motor with maximum power;
- Overload protection;
- Paddle switch for easy activation;
- Side handle with three positions.
- The tool might go into protection mode too quickly;
- It does not include the battery and charger.
3. DEWALT DCG416B: Best Angle Grinder Battery-Powered for Renovation Tasks
Specifications:
- Brand: DEWALT
- Material: Blend
- Item Dimensions: 13.11 x 6.2 x 4.9 inches
- Style: Angled
- Power Source: Battery Powered
This DEWALT 4.5–5″ model is included in many cordless angle grinder reviews and mine as well. The brand’s engineers test its products in actual construction conditions and know what the ideal power tool should be.
I chose this model as a gift for my friend Steve who was going to renovate a country house. He’s been using this tool for almost a year for various jobs, from grinding concrete to cutting metal structures, and it’s still in good shape.
Part of the Perform & Protect product line, this machine features a brushless motor and a reliable recoil brake. The E-Clutch system turns off the motor in less than a tenth of a second during pinch/lock.
The manufacturer claims Flexvolt batteries make the machine 54% more potent than the DCB205 20V MAX*, and Steve confirms it. If a sudden shutdown occurs, the tool is protected by the E-Switch.
- Compatibility with DEWALT 20V MAX* and Flexvolt batteries;
- Protective functions of E-Clutch and E-Switch;
- Effective recoil brake;
- Integrates with Tool Connect™ System.
- A paddle switch might not be convenient;
- The battery and charger are sold separately.
4. Makita XAG04Z: Best Wireless Angle Grinder With Battery Control
Specifications:
- Brand: Makita
- Material: Polymer
- Item Dimensions: 8.4 x 13.3 x 5.5 inches
- Style: Grinder, Tool Only
- Power Source: Hand Powered
Makita has long-established itself as a reliable supplier of power tools. Its history began in 1915 with the sale and repair of engines but soon turned in another direction. The team sought to create and distribute their products. Today, a rare construction site cannot do without products of this brand.
I’ve included this progressive cordless angle grinder 4.5–5″ in the list because I’ve heard many positive things about it. Some of my colleagues often use it to work with tiles, concrete, and pipes. The model is highly productive thanks to the automatic speed change technology and the brushless BL motor has electronic control.
Thanks to the Star protection communication technology, you can know about the battery’s state. Active feedback-sensing technology is responsible for safety. In addition to the tool, you get a 5″ INOX grinding blade, 5″ stainless ultra-thin cut-off wheel, lock nut wrench, 5″ cut-off blade guard, and 5″ tool-less blade guard.
- Exclusive technology of automatic speed change;
- Active feedback technology;
- The ability to increase battery life by 50% on one charge;
- Makita 18 V Li-ion batteries charge quickly and hold the charge longer.
- The trigger might not work correctly.
5. Craftsman: Best Rechargeable Angle Grinder for Aggressive Applications
Specifications:
- Brand: Craftsman
- Material: Metal
- Item Dimensions: 14.5 x 5.38 x 8.25 inches
- Style: Grinder Kit
- Power Source: Battery Powered
The history of this company started in 1927, uniting various brands and manufacturers. However, one thing remains unchanged — providing customers with quality products and introducing innovations.
My neighbor Andrew is a true craftsman and a fan of this company. This cordless angle grinder 4.5″ tool kit V20 is one of his recent purchases. He spoke with pleasure about the new product and shared his impressions.
The device is easy to operate thanks to the tool-free guard. You can confidently control the process with the side support handle and spindle lock option. You shouldn’t complain about power, as this wireless angle grinder has a high-performance brushless motor.
The metal body not only adds strength to the tool but also dissipates heat during long-term work. Andrew can cut and grind different materials, adjusting the tool for each job.
- Metal case;
- V20 system;
- Tool-free guard;
- Three positions handle;
- The kit includes a lithium-ion battery and a fast charger.
- The battery might quickly discharge during complex operations.
6. Greenworks: Best Angle Grinder Cordless With 4 Ah Battery
Specifications:
- Brand: GreenWorks
- Material: Plastic, Metal
- Item Dimensions: 12.6 x 2.8 x 5 inches
- Style: Angle Grinder w/4.0Ah
- Power Source: Battery Powered
The brand is an absolute beast when it comes to battery-powered devices. From lawnmowers and trimmers to chainsaws and power tools, the Greenworks 24V platform efficiently provides uninterrupted power to more than 100 types of products.
Speaking in numbers, the manufacturer guarantees that its 24 V Li-ion battery provides 20% more power and 35% more runtime. I know someone who has tested this machine and might vouch that their wireless devices offer a great user experience.
My friend Brenda, a carpenter, recently added this 4.5″ rechargeable angle grinder to her collection. She says that it looks like a good-quality tool with a brushless motor. The 24 V battery takes your cutting and grinding capabilities to a new level.
It also boasts ergonomics thanks to a light body, a two-position handle, and an innovative ventilation system that protects the tool from debris. Branda was also pleased that, in addition to the machine itself, she received a 4 Ah battery and a 2 A charger, 1 cutting wheel, 1 grinding wheel with plates, and 1 wrench. A good deal!
- Voltage is 24 V;
- 4 Ah battery and 2 A charger included;
- Innovative ventilation system.
- It might be difficult to put on the guard.
- Charging from the kit might charge the battery for a long time.
7. KIMO: Best Wireless Angle Grinder With 1,000 Hours of Battery Life
Specifications:
- Brand: K I M O
- Material: Metal
- Item Dimensions: 13 x 3.8 x 5 inches
- Style: Cordless grinder accessories 1
- Power Source: Battery Powered
KIMO’s slogan is “To make every repair simple and effortless,” which it has used for over 25 years. It went from a small workshop to a well-known power brand.
Today, its devices with lithium-ion batteries satisfy the needs for quick solutions of both experienced craftsmen and home enthusiasts. I once purchased this model for a test and kept it as a spare. My friend often borrows it for work in the garage.
This 4.5″ battery-powered angle grinder tool features a 9,000 RPM brushless copper magnet motor. It helps me in various jobs: cutting concrete, rebar, and tiles and grinding metal. The machine worked stably and smoothly.
External elements are also thought out in detail. The comfortable handle has two positions, which made it possible to adjust the machine to my needs. Charging takes about an hour.
- Wireless and wired power;
- Around 1,000 h of battery life;
- Smooth and stable motor operation;
- The kit contains 20 accessories, including a quick charger and one battery of 4 Ah.
- The tool might be weak for powerful works.
8. KOBALT: Best Battery-Powered Angle Grinder With Anti-vibration Technology
Specifications:
- Brand: Kobalt
- Material: Angled
- Color: Grey, black, blue
- Voltage: 24 Volts
- Power Source: Battery Powered
Kobalt was founded in 1998 as a line of hand, mechanic, and power tools. Battery-powered devices for repair work appeared in the brand’s range in 2011, and since then, this direction has been actively developing. It did not overlook angle grinders, without which it isn’t easy to imagine the construction or repair process.
I often meet this model at my colleague’s workshops, who cut, grind, polish, and sharpen materials with its help. Moreover, thanks to the tool-free casing, they might quickly switch from one function to another. The 24-volt brushless motor provides 8500 RPM, so this wireless angle grinder works very powerfully.
That is a comfortable device, as it has an auxiliary handle with three positions and anti-vibration technology. You don’t get tired any longer. The tool is designed for 5” blades, the set includes five grinders, and one cutting disk is included in the set.
- 24-volt engine;
- Petal switch with a blocking switch;
- Handle with anti-vibration technology.
- The trigger might be inconvenient;
- Batteries and chargers are sold separately.
9. Worx WX812L: Best Rechargeable Angle Grinder With Slim Design
Specifications:
- Brand: WORX
- Material: Metal
- Item Dimensions: 5.25 x 5 x 14 inches
- Style: 20V Battery + Charger Included
- Power Source: Battery Powered
The modern brand Worx offers its support in projects of any complexity — from simple modernization to the whole reconstruction. Advanced technologies present devices with which you can work comfortably and efficiently.
My uncle recently got into carpentry and bought this tool to do light work and fill his hand. I had an opportunity to test the device, and I would say that it is worth finishing this review.
This angle grinder battery-powered model is made of metal but is surprisingly light, only 4.5 lbs. It fully meets the standards of modern cordless grinding machines. A powerful brushless motor with 8500 RPM allows you to work longer and simultaneously extend the product’s life.
The manufacturer has taken care of safety, so the tool has an ergonomic handle for control and an anti-kickback function. The kit includes accessories that allow you to start immediately: battery 2 A·h 20 V, 5-hour charger, auxiliary handle, grinding wheel for metal, and wrench.
- Slim design;
- Anti-kickback;
- Compatible with all Worx 20 V and 40 V tools;
- 20 V battery and a charger included.
- Using the on/off switch is just not easy.
- Short battery life.
Buyer’s Guide Cordless Angle Grinder
A cordless angle grinder might open up many possibilities for you and become an excellent assistant in the house during repair and construction works, in the garage, and in the workshop. To use such a tool effectively and safely, it is worth learning more about its characteristics.
What is an angle grinder?
An angle grinder is a powerful tool that looks like a power saw with a circular blade. But the spectrum of its use is much broader despite its name.
Today, it is called the most versatile of the grinders. It can process and cut not only wood but also rigid materials, saw off strobes, eliminate material defects, for example, rust or welds, and make finishing works — grinding and polishing. The tool can work from a socket and be wireless.
Power
Power consumption determines how much work you can do with it. The more powerful the tool, the larger the disk you should use, and the larger the cut. Let’s take a look at some metrics and their capabilities:
- Up to 1,000 W — household tools, suitable for occasional simple work, for example, cutting pipes and nails and polishing.
- Up to 1,500 W — semi-professional devices used for more complex tasks such as grinding surfaces.
- More than 2,000 W — professional tools, ready to perform difficult tasks, such as cutting thick cast iron.
Size and weight
Power and the size of the disk with which it can work are among the factors that affect the tool’s parameters:
- The most compact and light (up to 4.4 lbs on average) are household models with 4″ and 4.5″ discs;
- Professional options have larger weights and dimensions, most of which are two-handled models;
- The most cumbersome are pneumatic machines used in large productions.
Control
An angle grinder can do wonders if you know how to adapt it to your needs and fully control it. The best helper is an additional handle screwed to the right or left of the motor housing. When performing complex tasks, that handle perfectly serves as a fulcrum. Modern models have handles that can be moved to two or three positions, which expands the capabilities of the master.
Accuracy
An additional handle and a marking line allow you to control the tool. As a result, you can ensure the high-precision cutting of hard materials.
Blade
The blade is a removable element, which is selected depending on the power of your rechargeable angle grinder, the type of job, and the material with which you plan to work:
- 4.5″ and 5″ are the most common sizes often used in home workshops;
- 6″ and 7″ are suitable for both grinding and cutting of medium complexity.
- 9″ is designed for powerful machines, frequently used for cutting volumetric structures, and inconvenient for grinding work.
Disc speed
The speed of angle grinders is usually between 2,000 and 13,000 RPM. When choosing a tool, you should consider your task. The higher the speed, the more rigid materials you can cut. If you intend to produce metal cutting work, then you should give your preference to models with at least 8,000 RPM.
Safety
Both a wireless angle grinder and a wire one are dangerous, so you should be careful when working with them. Here are some important rules to follow:
- Do not work if you are under the influence of drugs or alcohol, tired, sick, or taking meds reducing the reaction speed and attention.
- Remove all things that might wind up on the disk: jewelry, long hair, ropes, etc.
- Use gloves, safety glasses, a respirator, and headphones, and have a first aid kit nearby.
- Work with the tool in a protective cover, and use only undamaged suitable discs.
- Do not be in the cutting plane to avoid injury from a kickback when the disc is pinched.
- Release the tool from your hands only after the engine completely stops.
- Do not touch the disk immediately after work because you might get a burn.
How I Chose the Best Cordless Angle Grinder
When choosing the best rechargeable angle grinder, you should first focus on your future job. This might help you find the tool with features that will allow you to optimize your work. While preparing this review, I paid attention to the following factors:
- Motor type. All the models on this list have a brushless motor, which is more productive, energy efficient, and durable.
- Voltage. The higher the battery voltage, the longer you can work without recharging.
- Disk speed. A disc with a higher speed allows you to process more rigid materials.
- Convenience and control. I tried to favor models that provide more precise operation, such as devices with an additional handle.
- Brand. It is better to select brands with great reputations, as well as those that show good potential.
- Additional functions. The tool market is developing, and I wanted to choose models equipped with modern options, such as anti-kickback.
FAQ About Cordless Angle Grinder
Have you faced the need to buy an angle grinder for the first time? Here I reveal the questions you might have before buying.
What is the best cordless angle grinder?
The ideal tool is the one that meets your production needs and ensures safety during operation. Consider what work you plan to do and choose a device with the power and options based on this.
Can a porter-cable cordless angle grinder drill through concrete?
Yes. To cut concrete, you need to use a disc up to 0.12″ thick. If you want to cut reinforced concrete, you should buy special diamond discs that can cut iron.
Which cord or cordless 4″ angle grinder should I use when cutting cracks out of concrete?
You might use both of them, but the choice depends on the scale of the work. If there are small imperfections, you can try to deal with them with a powerful wireless tool.
A Tool for All Occasions
A cordless angle grinder allows everyone to try their hand at DIY projects and repair work. When selecting the tool for your tasks, pay attention to the device’s battery capacity, speed, and disk size. I recommend looking at the DEWALT DCG413B first. This tool makes it possible to finish the planned project and receive pleasure from the process.
Best Сordless Angle Grinder: The Comparison Table
| Best cordless angle grinders | Voltage, V | Disc size | Maximum rotational speed, RPM |
|---|---|---|---|
| DEWALT DCG413B | 20 | 4.5" | 9,000 |
| Milwaukee 2680-20 | 18 | 4.5" | 10,000 |
| DEWALT DCG416B | 20 | 4.5–5" | 9,000 |
| Makita XAG04Z | 18 | 4.5–5" | 8,500 |
| Craftsman CMCG400M1 | 20 | 4.5" | 8,500 |
| Greenworks | 24 | 4.5" | 10,500 |
| KIMO | 20 | 4.5" | 9,000 |
| Kobalt | 24 | 5" | 8,500 |
| Worx WX812L | 20 | 4.5" | 8,500 |
Do you think DIY masters need a cordless angle grinder? Do you use this tool? Tell us whether it appeared helpful in your project.
“A good tool stays with you for many years and choosing carefully ensures the job is done right, your work is neat, and the tool is always a pleasure to use”
