An angle grinder is one of the most important tools you can have in your DIY repertoire.
They have so many uses, including grinding, cutting, and polishing materials, and can be powered either electrically (with a cord) or battery-powered.
Angle grinders are extremely powerful pieces of equipment, able to generate lots of power quickly and can cut down both the time and energy needed for manual labor. For this reason, you must invest in the best angle grinder for the best value and protection.
So what should you look for in a grinder? We’ve picked 14 of the best angle grinders, which are the most ideal size for use in your home and at work.
We will go through all the pros and cons of each product and are confident you’ll reach an informed decision by the end.
The only thing left to do is sit back and let the angle grinder take charge of all your future DIY projects.
14 of the Best Angle Grinders
1. DEWALT Brushless Cut Off Grinder
This angle grinder from DEWALT promises long running times and safety.
First, let’s talk about the motor.
This angle grinder has a brushless motor that delivers 57% more run time versus a brush motor. It has an impressive single-speed motor that can reach a no-load speed of 9,000 RPMs.
We’re equally as impressed with the safety features included. An e-switch protection system ensures that if the grinder unexpectedly shuts down, a trigger switch will need to be cycled to restart it.
A kickback blade brake also engages when the paddle switch is released. This brings the wheel quickly to a stop.
The angle grinder has a 2-position side handle for improved comfort and convenience. This angle grinder requires no brush changes.
2. Makita XAG09Z 18V LXT Lithium-Ion, Brushless, Cordless 4 ½” Angle Grinder
This powerful grinder from Makita promises to spend more time working and less time charging.
It does this with an impressive lithium-ion battery, which promises 3 times faster charging, 50% more run time, 50% more motor life, and efficient power management.
All the while your battery is protected, as the system has added overload protection, over-discharge protection, and overheat protection.
The BL Brushless motor delivers up to 8,500 RPM. Automatic Speed Change Technology automatically adjusts speed and torque during operation for optimal performance.
An electric brake stops the wheel in 2 seconds or less upon release of the switch for added convenience and safety.
As a brushless motor, this angle grinder eliminates the need for carbon brushes and runs cooler than competing products.
It’s an ideal angle grinder for grinding, cutting, and sanding a wide range of materials. Lastly, it’s ergonomic design and rubberized soft grip provides increased comfort on the job.
3. Bosch 4-1/2-Inch Angle Grinder 1375A
This compact Bosch 4 ½” angle grinder is lightweight and ideal for a range of uses including metalwork and plumbing.
This angle grinder features a powerful 6.0 amp motor which produces up to 11,000 no-load RPM. The motor is designed with an extremely small field diameter, which allows the user to grind and cut with ease.
With 2 side auxiliary handles mean that the angle is comfortable to use. The top handle is also ergonomically designed for comfort and ease of mind.
This grinder has an epoxy coated design that protects it from abrasive debris. A sealed switch also keeps dust and debris from entering the switch mechanism.
Lastly, this angle grinder features a service minder brush-system which stops the tool when maintenance is required. A 5/8-11 inch spindle works with a wide array of sizes, mounting the most popular accessories.
4. Metabo 4.5″ Angle Grinder – 10, 500 Rpm – 8.5 Amp W/Lock-On
This 4 ½ angle grinder from Metabo promises world-class features and design for all your DIY needs. Firstly, this grinder is ergonomically designed and compact, making it easy to use and store.
With 8.5 amp and a brushed motor, this grinder has high torque which essentially means it works effectively with less power.
It comes with manual, hybrid, and fully automated assembly systems, offering more ways to use this grinder. A lock-on switch allows you to use the grinder without having to keep your finger pressed in.
5. Ryobi ONE Plus 18V Cordless 4-1/2″ Angle Grinder
Angle grinders can be used for a variety of jobs around your house. This cordless angle grinder from Ryobi promises comfort, convenience, and high speed to meet all of your DIY needs,
It delivers up to 6,500 RPM with no-load speed for fast and precise work. A comfortable grip zone over mold and a 3-position handle help reduce hand fatigue and allow you to work for longer and in more comfort.
It also has convenient on-board wrench storage.
This product from Ryobi can be used in conjunction with other Ryobi products, making it a flexible piece of equipment to start or grow your tool collection.
6. Milwaukee 7 Amp 4-1/2″ Small Angle Grinder
This 4 ½ angle grinder from Milwaukee promises to be both easy to use and achieve great results.
Firstly, this angle grinder is incredibly durable. Featuring a compact and lightweight design, this is one of the smallest grinders on the market and weighs just 3.3 lbs, and so is ideal for garages or workspaces where space may be limited.
It is the only tool in its class with a tool-free burst resistant guard. Additionally, a built-in advanced airflow system and multi-port exhaust extend the tool life.
7. SKIL 7.5-Amp 4 ½” Paddle Switch Angle Grinder
This compact 4 ½ angle grinder is both powerful and safe – the perfect combination for any DIY tool.
With a powerful 7.5 amp, the motor will reach up to 11,000 RPM. A heavy-duty metal gear housing gives the angle grinder additional durability and resilience.
A 3-position vibration-reducing handle also reduces hand fatigue and ensures comfortable, stable use. Convenient wrench storage also keeps the blade wrench tucked away safely and securely.
Safety is central to how this angle grinder works. A non-locking paddle switch which automatically turns off when released or dropped. This switch can found on the bottom of the tool where you hold on to it.
In this way, the tool is powered when you are ready to use and automatically turns off when released.
8. Makita 4 1/2 Paddle Switch Angle Grinder
This angle grinder from Makita is accurate, durable, and powerful, and will suit a variety of jobs including cutting and grinding.
Firstly this grinder combines 7.5 amp power and can deliver 11,000 RPM with a soft start. The Makita Diamond Blade with turbo rim engineering ensures constant contact with the material for a smoother cut and finish.
There’s also a host of durability features including a labyrinth design that seals and protects the motor and bearings from dust and debris. A protective zig-zag varnish also seals the armature.
A compact, lightweight design reduces hand fatigue, while a lock-on/off feature allows for continuous use. The rotatable gear housing can be positioned every 90° for convenience.
Lastly, the tool-less wheel guard provides easy clamping and an AC/DC switch allows for alternative-power
9. CRAFTSMAN 4 ½ Inch Angle Grinder
This small angle grinder from Craftsman packs a punch with high power, speed, and a host of useful features that maximize comfort and efficiency.
Firstly, this grinder is powered by a 6 amp motor and can produce an impressive 12,000 RPM. It has a tool-free guard and spindle lock for quick and easy adjustments.
This angle grinder has a 3-position handle adjustment which ensures comfortable control at all times. The handle itself has a contoured over-molded which provides maximum support over long periods of use and helps to reduce hand fatigue.
10. DEWALT 4 ½ Inch Angle Grinder
This 4 1/2” angle grinder from DEWALT is small but very powerful. With a 7.5 amp and AC/DC switch, this angle grinder can reach 12,000 RPM and is specially designed for removing material fast.
It also comes with higher overload protection ensuring the angle grinder is long-lasting, even during continuous use. It’s compact design increases durability and allows for easy storage when not in use.
Finally, this grinder has 2-position removable side handles, which help provide comfort and control over long periods of use. And the 5/8”-11 spindle thread accepts a wide range of 4 1/2” accessories.
11. Brushless Angle Grinder with 4.0Ah Lithium-ion Battery
This cordless angle grinder from POPOMAN is light, compact, and easy to carry. Combined with a powerful battery, it is the perfect angle grinder for a variety of jobs.
This grinder comes with a large-capacity lithium-ion battery, which charges fast and is long-lasting. A 3-position auxiliary handle ensures stable control and comfort at all times.
As a brushless motor, the angle grinder avoids pressure and energy loss, operating 150% more compared to conventional angle grinders. Don’t worry about the durability of the battery, as the grinder system comes with built-in overcharge and overheat protection.
If the power overloads, the motor will cut off the power supply, which will drastically extend your tool’s lifespan.
Lastly, innovative ventilation holes prevent dust and dirt from gathering together, which further improves the angle grinders durability and longevity
12. Ridgid 18-Volt OCTANE Cordless Brushless 4-1/2 in. Angle Grinder
This 4 ½ inch cordless angle grinder promises to deliver unmatched performance whilst not compromising on safety and durability.
Firstly, it uses a brushless motor that provides longer running time and has increased power, easily reaching up to 10,000 RPM in speed.
Impressive lock-off protection prevents any accidental starts, for example, if the battery is installed while the tool lock is on, the tool will still not operate.
A tool-free guard design means that the position of the guard can be easily changed without any hassle for increased productivity.
13. Avid Power 4 ½ inch Angle Grinder
This angle-grinder offers high speed and protection and is suited for small, medium, and large DIY jobs.
It is slim, lightweight and compact, and can reach an impressive speed of 11,000 RPM. 2 additional auxiliary handles allow for comfort, versatility, and stability when in use. An integrated spindle lock on the disc grinder allows for quick, easy wheel replacements.
Lastly, this angle grinder has a protective cover of the portable grinder that prevents sparks and metal chips during use.
14. PORTER-CABLE 4 ½ inch 6-amp Angle Grinder
This 4 ½ inch angle grinder is made from plastic and is a lightweight choice for all your grinding needs.
This grinder comes with multiple handle positions which allows you to use it in whatever way is most comfortable.
We love the integrated spindle-lock which allows for fast and easy wheel changes with a single wrench.
A tool-free guard design also means the grinder is low-maintenance and hassle-free.
Lastly, we like the added protection and fail-safes involved in this grinder’s design, including a no-volt switch which helps prevent accidental restarts following power disruptions when the tool is left on.
Angle Grinder Buying Guide
There are several things you should consider when looking for the best angle grinder.
Safety – angle grinders are powerful pieces of equipment. Safety should be a priority for you when choosing a grinder, but also whenever you use it.
The best angle grinders will of course come with added protections including turn-off mechanisms for when the battery overcharges.
Angle grinders can produce sparks when used to cut through metal. The blades themselves can also become damaged. You should always wear protective clothing, especially a full face shield to protect your eyes. Additionally, you should never use the grinder without the guard or handle attached.
Always consult the instruction manuals for specific precautions.
Size & Comfort – angle grinders come in a variety of different sizes, including 4, 4 ½, 5, 6, 7, and 9. 4 ½ is arguably the most common and flexible size to consider for your grinder.
As these are all portable, it’s important to pick one which has added comfort and is practical to use.
That means picking one which is lightweight and compact. It also means you should consider the handle.
Many angle grinders come with multiple handles that allow you to hold it in a variety of ways. The handles themselves can be coated with rubber or another flexible material to reduce vibration, and comfort your hand when in use.
While that sounds like an unnecessary luxury, comfort is a huge thing to consider when using an angle grinder as when your hand is properly supported, it will not suffer from fatigue, and you will have more control and stability during use.
Speed (RPM) – the speed of an angle grinder is usually measured in RPG, which stands for rotations per minute. Typically, smaller discs generate a higher RPM than larger ones but also tend to become more worn, quicker.
Power – there are several ways an angle grinder can be powered. Two of the main ones we’ve recommended are either corded or battery-powered.
Cordless, battery-powered angle grinders are very practical because they are portable. You can move them to different areas or walk around your garage so long as you charge them beforehand When choosing a battery-powered angle grinder, remember to check if the battery and charger are included in your purchase. Sometimes, companies sell the tool and anything else is extra.
Electric or corded angle grinders have the benefit of a constant supply of power when in use. This means it won’t shut off if it runs out of juice. Remember when deciding on an electric grinder, to take into account the length of the cord.
Angle grinders are the perfect tool to bring your work to the next level, but they can be scary to use for beginners because of their sheer power.
But with the right angle grinder, the right information, and the right protection, it is a perfectly safe tool for you to use and reap the benefits of.
And as our recommendations have shown, there is a huge choice out there when finding an angle grinder. You should invest some time in researching the benefits to each one to find the perfect match.
Regardless of if you are cutting or grinding materials or polishing off a surface, with the best angle grinder your results will always be quick and of high-quality.