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10 Best Angle Grinders (Review) In 2021

Last Updated: January 11, 2021
Best Choice
BLACK+DECKER-Angle-Grinder-Tool-image
BLACK+DECKER Angle Grinder Tool
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Best Value
Makita-Paddle-Switch-Cut-Off-Angle-Grinder-image
Makita Paddle Switch Cut-Off Angle Grinder
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Premium Pick
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Milwaukee M18 Angle Grinder
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Unclutterer
by Unclutterer
Published 07:02 am
Show Contents
Contents
  • 1. BLACK+DECKER Angle Grinder Tool
  • 2. Bosch 4-1/2-Inch Angle Grinder
  • 3. DEWALT Angle Grinder Tool
  • 4. Makita Paddle Switch Cut-Off Angle Grinder
  • 5. PORTER-CABLE 20V MAX Angle Grinder Tool
  • 6. Metabo HPT Angle Grinder
  • 7. Milwaukee M18 Angle Grinder
  • 8. CRAFTSMAN Small Angle Grinder Tool
  • 9. KIMO 20V Brushless Cordless Angle Grinder
  • 10. Meterk Electric Angle Grinder
Award
Brand
Rating
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Award:

Best Choice
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Brand:

BLACK+DECKER Angle Grinder Tool

Rating:

10
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Award:

Premium Pick
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Brand:

Milwaukee M18 Angle Grinder

Rating:

9
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Award:

Best Power
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Brand:

DEWALT Angle Grinder Tool

Rating:

8
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Award:

Best Value
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Brand:

Makita Paddle Switch Cut-Off Angle Grinder

Rating:

7
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Award:

Budget Pick
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Brand:

CRAFTSMAN Small Angle Grinder Tool

Rating:

7

The Best Angle Grinder

Angle grinders are great power tools that serve a variety of applications, making them a great addition to your toolbox! While you may think you won't get a lot of use from an angle grinder, when you begin to realize how versatile it actually is, you will be glad to have one. In no time, the cost of your angle grinder will have paid itself off and you will be finding DIY projects that you can get into just to be able to use it more. You will also soon realize the value in an angle grinder and how this one simple power tool replaces many that you may have laying around in your garage. Even with little experience, you can easily learn how to use one and begin reaping the benefits of these nifty power tools.

This guide reviews the best angle grinders available as well as considers some features that help distinguish those that are truly best.

1. BLACK+DECKER Angle Grinder Tool

Best Choice
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Key Features

    6 amp motor, 10k rpm

    3 position side handle

    Metal gear case

    Spindle size range: 5/8 – 11 inches

    Includes grinding wheel and spanner wrench

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BLACK+DECKER Angle Grinder Tool
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Perfect for a range of jobs such as sharpening, cutting, grinding, and more, the BLACK+DECKER Angle Grinder Tool is a corded angle grinder that gets the job done! This 4-1/2 inch grinder includes a 3 position side handle that gives you a great range of control and variation of angles; the spindle lock also allows you to swap accessories easily. The metal gear case helps prolong the life of this power tool, also protecting the motor. A built-in safety feature includes a one-touch release switch, which quickly cuts power to prevent injury. This tool measures 12.5 x 5.19 x 4.63 inches and weighs 4.49 pounds. A two-year limited manufacturer’s warranty is included.

    Pros

    One-touch shut off

    Powerful motor

    Durable and long-lasting

    Great for use on rock, metal, and concrete

    User-friendly

    2-year limited manufacturer’s warranty included

    Cons

    Cutting wheel needs to be purchased separately

    On/off switch sometimes sticks slightly

2. Bosch 4-1/2-Inch Angle Grinder

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Key Features

    6 amp motor, 11,000 rpm (no load)

    2 position handle for ergonomic use

    8 ft power cord

    Lock-on switch

    5/8 – 11-inch spindle works with a range of sizes

    Includes spanner wrench and abrasive grinding wheel

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Bosch 4-1/2-Inch Angle Grinder
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Ideal for those who work in metal or vehicle fabrication, plumbers and many other professions that require the use of an angle grinder, the Bosch 4-1/2-Inch Angle Grinder is compact and easy to use, but sure packs a punch of power. With a 6 amp motor and functioning speeds of 11,000 rpm (no load), this corded angle grinder gets the hard work done. There is a 2 position handle ergonomically designed so that you can use this tool comfortably while getting the angle required for a clean cut. Safety features include a sealed switch to prevent any dust and debris from clogging the switch, as well as the Bosch Service Minder Brush System that will warn you when maintenance is required. This compact grinder measures 14.4 x 5.2 x 5.2 inches and weighs just 3.08 pounds, making it perfect to move between job sites.

    Pros

    Sealed switch

    Alerts you when maintenance is required

    High quality, durable construction

    Easy to set up and use

    Compact and lightweight

    Cons

    Motor can get quite warm when used continuously

    Cord could be more durable, take care while using

3. DEWALT Angle Grinder Tool

Best Power
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Key Features

    Best power output to weight/size ratio

    1.8 horsepower motor

    11 amp, 11,000 rpm

    2 position side handle

    72-inch power cord

    Dust ejection system built-in

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DEWALT Angle Grinder Tool
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For exceptional power levels, the DEWALT Angle Grinder Tool features a brushless motor which increased its durability and allows you to increase run time. Delivering 2.1 joules of impact energy and 11,000 rpm, enabling you maximum performance this paddle switch angle grinder is easy to operate. This electric grinder tool has a two-position side handle for ease of use. A dust ejection system prevents damage by ejecting any dust and debris. The guard is capable of rotating up to 360 degrees and can easily be moved to fit your needs. While this tool only comes as it is (no wheel included), it is equipped with a quick-change wheel release which makes it easy to use your wheels compatible with this grinder. Safety features include a safety lock-off which will stop turning it on accidentally as well as an auto shut-off when the brushes require replacement. The overall product dimensions are 15.63 x 5.94 x 4.81 inches. A 3-year limited warranty is also included.

    Pros

    360-degree guard rotation

    Oversized brushes allow for longer lifespan

    Quick change wheel release

    Easy setup

    Has a paddle switch

    Includes a three year limited warranty

    Cons

    No wheel included

    No spanner wrench included

    On the louder side

4. Makita Paddle Switch Cut-Off Angle Grinder

Best Value
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Key Features

    Large paddle switch

    7.5 amp power, 11,000 rpm

    Lockable on/off switch

    Includes 1x 4-1/2 inch Turbo Rim Diamond Blade

    Includes 5x 4-1/2 inch grinding wheels

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Makita Paddle Switch Cut-Off Angle Grinder
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With a durable and powerful motor, this hand grinder tool by Makita is our best value pick. Featuring an easy-to-use paddle switch, with Makita Paddle Switch Cut-Off Angle Grinder you can easily toggle your tool on or off, with it also delivering up to 11,000 rpm. The gear housing offers rotation up to 90 degrees, both left and right, so you have more control over the accuracy and precision while grinding or cutting. Ideal for left hand or right-hand users, this angle grinder allows you to install the side handle to the side that best suits you. The tool-free guard means you can easily clamp your grinder while in use. The labyrinth style of construction paired with the zig-zag varnishing protects the motor from any debris. This compact power tool weighs only 4.5 pounds. A one year warranty is included.

    Pros

    Supplied with a metal tool case

    Constructed to prevent debris entering the motor

    Multi-functional use

    Ideal for left/right-hand users as handle can be installed on either side

    Metal gear housing for added durability

    Includes a warranty

    Cons

    Can overheat if used for too long

    May need to purchase additional tools to swap the blade guards

    5/8 inch accessories and wheels only

5. PORTER-CABLE 20V MAX Angle Grinder Tool

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Key Features

    20v max system producing 8,500 rpm

    Cordless angle grinder

    Wheel diameter of 4-1/2 inches

    3 position side handle

    Cast metal gear housing

    Includes a spindle lock and tool-free guard

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PORTER-CABLE 20V MAX Angle Grinder Tool
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For high-performance power on the go, this offering by PORTER-CABLE is an excellent choice as it is a cordless angle grinder offering up to 8,500 rpm. The PORTER-CABLE 20V MAX Angle Grinder Tool has 3 positions contoured side handle that allows you to set its position for comfort and ease of use. Many angle grinders can overheat while in use, but the thoughtful design put forward by PORTER-CABLE includes a cast metal gear housing that helps evenly distribute heat, keeping it cool even for longer durations. The spindle lock allows you to quickly and easily swap out wheels while the tool-free guard also allows for easy adjustment. It measures 15.31 x 6 x 6 inches and weighs 6.69 pounds. A three-year limited warranty is also included.

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    Pros

    Ergonomically designed handle for comfort while using

    Can run for longer periods of time without overheating

    Allows for greater versatility as it is cordless

    Compatible with a range of battery models

    Durable build

    Includes warranty

    Cons

    Brushes cannot be replaced

    Batteries not included

    No lock on/off switch

6. Metabo HPT Angle Grinder

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Key Features

    6.2 amp motor, maximum power output of 980 watts

    Left or right mounted side handle

    Includes a spindle lock

    Quick shut off safety feature

    Includes 5 wheels (4-1/2 inch disc size)

    Includes carry case

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Metabo HPT Angle Grinder
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With a low and compact profile, the Metabo HPT Angle Grinder is the best choice for those who need to complete work in tight spaces. The 6.2 amp motor provides high performing power with a maximum output of 980 watts. The side handle is removable so it can be positioned on the left or right side, depending on the preference of the user. The spindle lock allows for quick and easy changes between discs. The power button is located on the left-hand side of the grinder, sliding on and off, although there is also a quick-off safety feature built-in. Five wheels (4-1/2 inch disc size) are included as well as a carry case, keeping all of your tools neat and tidy and easy to transport between sites. It measures in at 10.15 x 4.5 x 2 inches and weighs just 4 pounds, also making it light and compact for travel. An impressive five-year warranty is included.

    Pros

    Compact yet durable

    Low profile for tight spaces

    Can be used for extended use and doesn’t overheat

    Impressive 5 year warranty

    Cons

    Guard cannot rotate up to 360 degrees

    Vibrates more than other models

7. Milwaukee M18 Angle Grinder

Premium Pick
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Key Features

    Cordless angle grinder

    4-1/2 – 5 inch

    High performance

    Tool-free adjustments

    Metal housing and gear system

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Milwaukee M18 Angle Grinder
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Our premium pick is the Milwaukee M18 Angle Grinder which uses the power of a corded angle grinder without the cord! The red lithium battery doubles the run time, allowing you to work for longer and much more efficiently. The paddle switch also makes using this grinder very simple. The side handle is built onto the right-hand side of the tool and allows you to grip it perfectly for comfort while in use. Many angle grinders require the use of tools to adjust the guard and change out accessories, however, this model is completely tool-free! The metal grinder housing and gear system are durable and built to last, so this power tool will become a trustworthy addition to your toolbox. It measures 2.3 x 12.9 x 7.6 inches and weighs 5 pounds. It also includes a five-year warranty.

    Pros

    Paddle switch angle grinder

    Great portability

    Includes overload protection

    Ergonomic handle

    Warranty included

    Cons

    No battery included (requires 2 lithium-ion batteries)

    No grinding wheel included

8. CRAFTSMAN Small Angle Grinder Tool

Budget Pick
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Key Features

    4-1/2 inch angle grinder

    6 amp, 12,000 rpm

    3 position handle

    Tool-free guard

    Spindle lock

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CRAFTSMAN Small Angle Grinder Tool
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This budget pick from our list, the CRAFTSMAN Small Angle Grinder Tool offers a 6 amp motor with a power output of 12,000 rpm, ideal for light-duty applications. The contoured side handle can be positioned in three different ways, making it ideal for a range of applications. The spindle lock helps you quickly and easily switch out wheels and with it being tool-free, you need not worry about having a wrench handy. This compact angle grinder measures in at 12.27 x 3.45 x 4.43 inches and weighs 4.56 pounds.

    Pros

    Inexpensive

    Contoured, ergonomic side handle

    Great for light-duty work

    Good quality

    Cons

    Can get hot while using

    No place to store the key

    Power lock button is a bit confusing

9. KIMO 20V Brushless Cordless Angle Grinder

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Key Features

    4.0Ah lithium-ion battery-powered angle grinder

    Metric arbor M14x2mm

    9,000 rpm power

    Brushless motor

    2 position side handle

    Includes sandpaper, 5x each cutting & grinding wheels

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KIMO 20V Brushless Cordless Angle Grinder
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For a complete kit, this offering by KIMO is a great option! The KIMO 20V Brushless Cordless Angle Grinder includes the lithium-ion battery as well as five each cutting and grinding wheels. Despite this grinder being cordless, it does not lack in power and is still capable of achieving just as much as a corded one. Many angle grinders overheat when used for heavy-duty usage, however, this grinder includes an optimized cooling system that maintains a temperature of 47 degrees Celsius, which is the optimal temperature for high performance. The wheel guard is constructed from cast metal which pairs safety with durability. The side handle can be a position to the left or right-hand side, giving you more control in a variety of applications. It measures 13 x 3.8 x 5 inches and weighs 5.3 pounds.

    Pros

    Includes a wood cutting wheel

    Includes a carry bag, great portability

    1000 hour battery life

    Cast metal wheel guard

    Ventilation system prevents overheating

    Cons

    Nonstandard arbor size

    Guard cannot rotate the full way around

    No safety on/off switch

10. Meterk Electric Angle Grinder

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Key Features

    4-1/2 inch corded angle grinding machine

    6A motor with 12,000 rpm

    115mm disc size

    Spindle lock

    One-hand control trigger lock

    Includes 3 each cutting and grinding abrasive wheels

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Meterk Electric Angle Grinder
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The Meterk Electric Angle Grinder features a high-quality motor, offering up to 12,000 rpm making it ideal for cutting, grinding, polishing, and removing rust. The handle can be positioned to the left or right increasing its ease of use. With just one hand, you can operate this angle grinder and the two-stage safety trigger helps prevent accidents. The spindle lock allows you to quickly and easily swap wheels depending on the required application. A heat dissipation system is built in to help prevent overheating. It measures 12.2 x 5.12 x 4.33 inches and weighs 5.84 pounds. A 24-month warranty is also included.

    Pros

    Handle can be installed to the left or right

    Includes a safety trigger

    Compact and durable

    Cons

    Quite noisy

    User manual is poorly translated

Features To Consider With Angle Grinders

Disc Sizes

When it comes to disc size, the larger the disc, the more power the angle grinder will have. You will sometimes also see the disc referred to as a head or wheel. One of the most popular disc sizes is 4-1/2 inch and this disc size is commonly found with most models, so you can easily switch out your disc with another, even if they are not the same brand as your angle grinder.

the best angle grinder

Power Source

Corded power tools are always much more powerful than cordless and this is also true with angle grinders. The power source of your angle grinder will determine the amount of power it can deliver. Typical power sources for angle grinders include electricity (corded), battery (cordless), petrol, or compressed air (pneumatic). Depending on the purpose of your angle grinder, the power source is a feature you will want to consider; light to medium applications will mean a corded or cordless angle grinder will be fine, but if you are looking at more heavy-duty applications that require a great deal of precision, a pneumatic angle grinder may be best.

Speed

The speed at which the disc rotates, referred to as the rotations per minute (RPM), will help determine the power it holds. While you may think the higher the RPM, the more power it would create, however, it is actually the other way around! Larger, more powerful angle grinders have a lower RPM but offer exceptional power. Depending on the way in which you use your grinder, a high RPM is still capable of working well but is better suited for light to medium applications. Heavy-duty applications will require a larger angle grinder with lower RPM.

Disc Guard

The disc guard is a key consideration when it comes to angle grinders as it is an important safety feature. The disc guard prevents broken pieces from hitting the user as well as prevents the user from being able to accidentally touch the moving blade. The guard also protects the disc itself, so when it is set down, the weight of the tool won't be placed upon the disc entirely. Metal disc guards are the most durable and you will find this on the best angle grinder models, however, the majority of them are plastic.

Loud Noise

Like most power tools, angle grinders are quite loud when running. On average, the noise level of an angle grinder is about 95-100dB; when you compare this to 140dB which is the level of sound created when a jet engine takes off, you can see that they are pretty loud! Smaller angle grinders do tend to be a bit quieter, but you will always need to ensure you wear appropriate gear to prevent any damage to your hearing.

the best angle grinder

Durability

The majority of angle grinders are made up of a combination of metal and plastic which gives them relatively good durability. While the tool itself is likely to be functional for many years, its the discs that tend to be less durable and require replacement much more often. Diamond cutting discs are much more durable, however, they are more expensive; do bear in mind though, a diamond disc shouldn't be used to cut metal otherwise it will weaken in hardly any time!

Ergonomics

The side handle should be ergonomic for ease of use and comfort! The best angle grinder will allow you to move the handle to a few different positions so that you can use it for a range of functions. Another key consideration is whether you can mount the handle to the left or right.

Safety

Angle grinders can be a very dangerous power tool if not handled correctly. One of the biggest considerations should be the availability of a safety slip clutch or something similar that will automatically shut the tool off should you drop it, for example. Being able to rotate the guard is also a great safety feature. Bench vises might help you keep the object of griding in one place.

the best angle grinder

Angle Grinder FAQ

Q: What kind of tasks can I use an angle grinder for?

A:

Angle grinders provide such versatility, so they are a great tool to add to your collection! From cutting, grinding, deburring, finishing, and polishing, there are endless options; you can use them on metal, tile, concrete, wood, and much more. The best angle grinders will include a variety of discs you can use for a variety of purposes, but if not, always just double-check what discs they can accommodate and you can purchase your own.

the best angle grinder

Q: How to change the blade on an angle grinder?

A:

Before changing any blade on your angle grinder, ensure it is powered off. It is a good idea to unplug it (if corded) or remove the battery (if cordless) to ensure you do not accidentally turn it on while changing the blade. Some angle grinders are tool-free and you can replace the blade without tools, although some will require you to use one. Assuming tools are required, you would need to use a screwdriver to remove the disc guard; then,  loosen the screw that keeps the disc secure, or release the latch. Hold the blade lock-in and turn the grinder so the wheel is upwards facing. Try to turn the wheel; if it doesn't move it means it's locked, but if it does move, release the blade lock and press it again. Depending on the model of your angle grinder, you may need to use a wrench to turn the arbor nut counterclockwise and remove it. You can then remove the blade with ease; position the new blade and place the arbor nut back in place and tighten it so that the blade is secured.

Sources

    What Is an Angle Grinder in Welding, and How Is It Used? - TWS

    3 Tips to Choosing an Angle Grinder - Construction Marketing Association

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