Best Angle Grinder Reviews

Whether you’re a craftsman or a construction worker, a metalworker or an auto shop owner, the best angle grinder is an invaluable power tool.

In today’s best angle grinder reviews, we’ll break down 5 of the leading grinders at your disposal so you can make a smart choice saving yourself some precious time and money.

Known by a number of names, from disc grinders and side grinders through to the more familiar angle grinder, the functionality of these compact powerhouses extends far beyond mere grinding.

Undeniably, grinding is their core purpose. They’ll help you to smooth off rough edges and remove surplus material without a bead of sweat or any real effort. Beyond that, with the right wheel in place, you’ll be able to sharpen your tools or cut through concrete, remove rust or slice through tiling… The list goes on.

We’ll look first at the various types of angle grinder you can choose from. After that, we’ll walk you through a detailed breakdown of 5 of the very best grinders up for grabs. Once you have a solid idea of what kind of angle grinder would make the best for you, we’ll move on to a thorough buying guide leading you every step of the way toward purchase.

Editor's Choice

  • 11-amp motor
  • 11,000 RPM
  • 4 ½-inch disc
  • Dust ejection system
  • Safety lock
  • Paddle switch
  • One-Touch Guard
Rated as
4/5
Budget Friendly

  • 7.5-amp motor
  • AC/DC switch
  • 10,000 RPM
  • 4 ½-inch disc
  • 2 ½-inch grip
  • Paddle switch
  • Spindle lock
  • Diamond blade
Rated as
4/5
Amazon's Choice

  • 18-volt lithium-ion battery
  • 6500 RPM
  • Trigger switch
  • 4 ½-inch grinding wheel
  • Pin wrench
  • Rotating grip
Rated as
4/5

The Best Angle Grinder Reviews – Comparison Table

There’s a considerable array of angle grinder glutting the market and it can be confusing when confronted with so many options. Fortunately, we’re here to guide you and simplify this buying decision.

Check out this snapshot of the 5 best angle grinders for your money…

Table of Contents

Main Features
  • 11-amp motor
  • 11,000 RPM
  • 4 ½-inch disc
  • Dust ejection system
  • Safety lock
  • Paddle switch
  • One-Touch Guard
Rated as
4/5

First up in our best angle grinder reviews is a powerful little unit from the legendary DeWalt. Home hobbyists and contractors alike are consistently drawn to the signature black and yellow tools offering fantastic functionality at a highly attractive price point.

You can choose from several packages depending on whether or not you want the durable kit box and the No Lock-On paddle that eliminates the chance of accidental start-up. DeWalt even cater for contractors needing grounded tools so roll with the bundle that best fits your requirements.

Take a glance at the core features of this multi-purpose grinder then we’ll drill down on it in more detail…

Although it’s a compact angle grinder with a 4 ½-inch blade, don’t think for a moment the DeWalt is lacking on the power front. The 11-amp motor generates an outstanding 11,000 RPM and is more than able enough for most reasonable purposes. Whether you want to grind away excess material or cut through stone, simply attach the requisite wheel and you’ll be slicing through whatever you throw its way.

Convenience is at the forefront of this compact angle grinder. You’ll be able to change the wheels without needing to reach for your tool kit. There’s a button on top that unlocks the disc. Turn the disc manually and loosen the spindle nut then swap your wheel for whatever you need for the job at hand.

The One-Touch Guard is another great time-saving device. Just knock it against your workbench and you can rotate it to the position you need in a single action. It moves through a full 360 degrees.

The DWE402K is a new and improve model with some small but important tweaks made to extend an already enviable lifespan. The older D28402 had smaller brushes and the new oversized versions increase durability at the same time as enhancing performance. The bulky bevel gear means the transmission won’t let you down in a hurry either.

Angle grinders kick up a significant amount of debris. These finer particles can work their way inside your tool clogging it up and reducing its lifespan. With the DeWalt, the efficient dust ejection system in place puts paid to this and keeps all rogue matter safely away from the air vents on your disc grinder.

The wheel flanges are designed so the DeWalt will easily accommodate all mainstream attachments and accessories. One of the leading advantages of an angle grinder is the breadth of applications you can take on by using assorted discs and attachments. Whether you need a diamond cutter for stone or a silicon carbide disc for metal work, you’re spoiled for choice with this awesome angle grinder with everything fitting snugly to lessen the chance of a poorly housed disc becoming a lethal missile in the workshop.

Although this angle grinder is designed with the home enthusiast in mind, it won’t be out of place on the jobsite or in a workshop either. It’s clearly not cut off for sustained and heavy punishment but it will certainly serve a turn in a commercial setting as long as you keep your expectations reasonable.

DeWalt always deliver in terms of guarantees. You’ll get a limited 3-year warranty taking the headache out of your purchase and protecting you against crushing repair bills for the first thousand days. You can’t ask for much more than that.

Take a glimpse now at the chief advantages and very minor drawback with this strong candidate for the best angle grinder in its class before we serve up our verdict and you decide whether it gels with your needs…

Why we like it

  • Highly flexible 11-amp motor serves up more than enough power to rapidly remove all kinds of material depending on the type of 4 ½-inch disc used
  • Disc rotates at an impressive 11,000 RPM for a combination of speed and precision under load
  • Dust ejection system keeps all damaging particles away from the air vents of your grinder prolonging its lifespan
  • Swap out the wheels tool-free thanks to Quick-Change wheel release
  • Kiss goodbye to accidentally firing up your angle grinder with neat safety lock in place
  • All standard attachments and accessories fit the DeWalt meaning you get a real multi-tasking tool
  • Guard rotates through a full 360 degrees with One-Touch functionality
  • Side handle, hard case and wrench thrown in
  • Solid 3-year limited warranty offers peace of mind against unexpected repair bills

Conclusion

If you’re looking for a dependable and rugged angle grinder that performs admirably for a smaller electric 4 ½-inch model, the DeWalt DWE402K warrants a place on any shortlist.

Not everyone wants or needs a colossus of an angle grinder and if you’re on the trail of a neat little unit that packs a considerable punch, the DeWalt is just about as good as 4 ½-inch angle grinders get.

Smooth and easy to use and weighing in at a mere 4 pounds, it has a small footprint and a low-slung gear case so you can get into awkward spots without contorting yourself.

Considering the relatively low price tag, there’s not much more we could ask for from the DeWalt DWE402K. Put simply, it’s one of the strongest small angle grinders in this highly competitive class.

Check one out at your earliest convenience!

Main Features
  • 7.5-amp motor
  • AC/DC switch
  • 10,000 RPM
  • 4 ½-inch disc
  • 2 ½-inch grip
  • Paddle switch
  • Spindle lock
  • Diamond blade
Rated as
4/5

Makita has a pretty unassailable reputation founded on providing top-tier tools without forcing you to spend a fortune for the privilege.

They say good things come in small packages and this mini 4 ½-inch angle grinder illustrates this perfectly. While you might think a 7 ½-amp motor is unfit for purpose in an angle grinder, nothing could be further from the truth. While it might lack the variable speed available on some Makita models, this is an unimprovable angle grinder in its price range.

Check out the features at a glance before we explore this highly effective angle grinder in depth…

Although it’s a single speed angle grinder, the 7 ½-amp motor on the Makita spins its disc at 10,000 RPM which makes it ideal for even demanding applications. This grinder is a textbook example of why it’s not always wise to obsess purely on performance figures at the expense of overall experience.

One thing that puts many people off angle grinders before they try one out is the idea they’re massive, unwieldy tools that are tiring to use. Weighing not much over 4 pounds, the ultra-compact Makita means you’ll be able to beaver away for hours without fatigue setting in. Also, if you need to keep at it for prolonged periods, the lock on/off feature lets you keep the grinder rotating without needing to keep the trigger depressed, a very worthwhile extra for contractors.

The grip is also manufactured so that it’s particularly easy to grab hold of. It’s especially small meaning you can wield the grinder for hours without your wrist feeling the strain. The paddle switch, on the other hand, is much bigger for ease of use.

Angle grinders kick up a high volume of dust and debris. That comes with the territory and there’s nothing much you can do beyond installing suitable dust management systems in your workshop. Beyond that, Makita has your back by protecting the angle grinder itself in a couple of ways…

Varnish is applied in a zig-zag fashion designed expressly to safeguard the inside of your grinder. Dust working its way in can dramatically reduce the lifespan of your power tools. The motor and bearing also come fully sealed so that they’ll also be protected from rogue particles that can wreak havoc if allowed unwanted entry. Not only will your angle grinder work more effectively, it’ll last much longer as well. Combined with a durable build, you can expect your Makita to keep going for years with the very minimum of maintenance.

The gear housing will rotate through 90 degrees making the Makita the ideal grinder for an array of applications. You’ll be able easily wriggle your way in to places where less agile angle grinders would seriously struggle.

Thinking of variety, there’s a diamond disc included which will get you up and running nicely. As with any angle grinder, it’s all about the wheel and the Makita will easily accommodate any discs of the correct size you need to press into commission. There’s a spindle lock to facilitate swift wheel changes so you won’t need to fumble around for extra tools when you want to swap out the disc.

Always remember to use the right discs and attachments. Poorly fitting attachments can become dangerous flying projectiles if they come adrift so take extreme care in this area.

Variable power supplies can trip you up if you have a power tool that’s limited. The Makita has a nifty AC/DC switch up above the motor housing offering you total flexibility, something all too rare with tools in this price range.

Have a quick look now at the leading advantages of the Makita and the couple of minor places where it stumbles…

Why we like it

  • 7 ½-amp motor is deceptively powerful maxing out at 10,000 RPM and more than sufficient for most applications
  • Weighs just 4 ½ pounds so you’ll be able to work for long spells without feeling the strain
  • Continuous on feature means no more clawed hands from constantly depressing the trigger on longer jobs
  • Innovative varnish protects the innards of your tool from damaging debris
  • Motor and bearings fully sealed so no particles will work their way inside
  • Oversized paddle switch designed with your comfort firmly in mind
  • Size and shape of grip ideal for extended use
  • Diamond wheel thrown in so get going straight out the box
  • Gear housing rotates through 90 degrees catering for all applications

Conclusion

It’s no accident that Makita are the go-to tools for home woodworkers, craftsmen and contractors alike. You’re always guaranteed of excellent build quality, power and precision combined and all this at a perfectly reasonable price point.

If you have a range of lighter duties planned out for your angle grinder, this small but capable 4 ½-incher from Makita merits your further investigation. While it won’t stand up to relentless heavy work in a commercial setting, you wouldn’t expect that at this price point. For home use or an occasional professional project, though, the Makita takes some beating.

While the warranty could be lengthier and the lack of variable speed will irk some, overall the Makita is a rock-solid compact angle grinder deserving its place on any list of the best disc grinders. Road test one today and we can’t imagine you’ll be disappointed.

Main Features
  • 18-volt lithium-ion battery
  • 6500 RPM
  • Trigger switch
  • 4 ½-inch grinding wheel
  • Pin wrench
  • Rotating grip
Rated as
4/5

As we hit the mid-point of our best angle grinder reviews, something you might not be expecting…

A cordless disc grinder from Ryobi, pioneers of cord-free tools with a stellar reputation for providing woodworkers and craftsmen the world over with the total versatility of cordless tools without any noticeable reduction in quality.

Glance first at the main features then we’ll run down why the Ryobi P421 makes sense for anyone seeking out a capable and total flexible angle grinder at a very keen price…

It’s common knowledge that corded power tools deliver generally superior performance. This is no surprise. What might come as a surprise, though, is just how effective this neat little cordless grinder from Ryobi is when set against comparable corded models.

First thing’s first, this disc grinder is part of Ryobi’s ever-growing ONE+ range and is sold as a bare tool. When you’re budgeting, factor the battery and charger into the equation if you don’t already have them in your collection. Bottom line, this makes the grinder a reasonably expensive proposition. On the flip side, if like many woodworkers you are already invested in this neat system, you’ll be able to make considerable savings buying the tools and using your battery between them.

As well as the standard 18-volt lithium-ion batteries, you’ll also be able to accommodate the older nickel-cadmium batteries if you have any you need to find a home for so the Ryobi is a very forgiving beast in terms of compatibility.

While the 18-volt lithium ion battery only rotates the wheel at 6500 RPM, the power you’ll get from the Ryobi is more than fit for purpose. As with the Makita, it’s a sound example of why you should examine the overall package rather than focusing narrowly on a single number.

Comfort is everything with tools. The grip is notched and rubberized meaning you won’t find your grinder slip from your grasp even if you have oily or greasy hands. With the grip turning through 90 degrees and the side handle itself packing three position settings, you’ll be able to work in comfort while also positioning your tool wherever you need it to go.

This angle grinder tips the scales at just over 5 pounds so, while it’s not as lightweight as some of its competitors, it’s certainly not unwieldy enough to feel uncomfy. It has an attractively small footprint measuring in at 8 x 12 x 8 inches so storage won’t be an issue.

The tool-free guard makes sure that safety is front and center and this is super-simple to position as you see fit.

The disc changing is not tool-free but all you’ll need is a pin wrench which Ryobi throw in. This is stored onboard so you won’t need to worry about misplacing it or breaking your workflow to find it when you want to switch applications.

A regulation 4 ½-inch grinding disc comes included so, as long as you have the battery issue in hand, you’ll be up and running as soon as your package lands.

Whether you want to cut tile or clean rust, grind back surplus metal or fix some grout, the Ryobi P421 will make a fine and free-ranging addition to your toolkit. Have a quick look at the main pros and cons of this outstanding little angle grinder before we give you our verdict and edge onwards with our reviews…

Why we like it

  • Enjoy the complete freedom of movement that comes with cordless tools while also having more than ample power on tap
  • You’ll need a pin wrench to change discs but it’s a shotgun procedure with the tool is provided stored onboard for easy access at all times
  • Comfy side handle moves through 3 positions offering great adaptability
  • Rotate the grip through a full 90 degrees further enhancing your ability to work in any position without cramping yourself up
  • Save money by using the lithium-ion battery from your ONE+ tools allowing you to pick up the bare tool at a cutthroat price
  • Backwards compatible with older nickel-cadmium batteries if you have any on hand and you’re operating on a budget
  • Grinding disc chucked in so get working directly out the box
  • Tool-free guard for safe and simple positioning
  • Trigger switch is a pleasure to use even if you work for long and unbroken spells

Conclusion

As with any power tool, it’s all about horses for courses…

If you’re looking for a really heavyweight piece of kit for demanding and challenging applications, a compact cordless is obviously not for you. We’d suggest one of the beefier models we reviewed here or a gas-powered alternative.

If, on the other hand, you need a truly compact unit with all the freedom of movement a cordless tool serves up, there’s little doubt that the Ryobi P421 will be the best investment you could make this year. Suitable for a range of grinding, polishing and cutting work depending on the disc you choose, this angle grinder is nimble, flexible and surprisingly adept on the power front.

Give the Ryobi a shot and you’re extremely likely to become a lifelong convert to the multi-tasking ONE+ range of tools. An initial investment in the battery and charger pays dividends time after time as you build on your tool collection without needing extra power plants each time. What have you got to lose?

Main Features
  • 7-amp motor
  • 11,000 RPM
  • Spindle lock
  • Metal gear case
  • Side handle
  • Paddle switch
  • Tool-free guard
  • Cut-off / Grinding wheel
Rated as
4/5

PORTER-CABLE has more than a century in the power tool trenches to call upon and this expertise comes fully to the fore with this 4 ½-inch angle grinder and cut-off tool.

The company specializes in producing both corded and cordless tools that hit the quality bar for home woodworkers and tradesmen alike without demanding a king’s ransom.

While this angle grinder is easy to handle and ideal for a home set-up, the build quality alongside its admirable performance mean it’s equally cut out for use in a commercial setting. Whether you’re a construction worker or a welder, whether you work with wood, metal or stone, read on to see if the PORTER-CABLE disc grinder deserves a place in your tool kit.

Although it’s pitched at contractors, masons, auto enthusiasts and other pros in need of a disc grinder, the PORTER-CABLE also makes a neat addition to any home workshop.

It’d dual use as a grinder and cut-off tool – both wheels are provided – means this outstanding little tool also finds favor with fabricators and welders who routinely need to cut and polish metal with an uncompromising grinder. To this end, a pair of guards are also provided along with the brace of wheels. Whether grinding or cutting, safety remains the highest priority and PORTER-CABLE has your back without you needing to dig deeper into your pocket.

The 7-amp motor spins the disc at a pacey 11,000 RPM so the grinder will keep up with even rigorous demands at home or in the workplace.

Considering its speed and overall performance, you might be expecting something that feels like a lead weight. On the contrary, this compact angle grinder comes in at under 4 pounds so you’ll be happy holding it for hours on end without fatigue kicking in.

Since it’s designed with commercial users in mind, build quality is first rate. The cast metal gear housing keeps heat from becoming a problem under heavy use. There’s an automatic shut-off on the paddle switch so if you drop your angle grinder it won’t transform itself into a lethal weapon.

As with any decent angle grinder, you’ll be able to tweak the position of the handle in line with the work at hand. There are 3 position settings although a few users complain about the actual placement of the side handle. This is fairly subjective so we’ll leave you to make up your own mind about that.

Changing the wheels is a simple affair and you’ll just need the wrench included to swap the discs out while barely breaking your stride. As mentioned, you’ll be gifted with a wheel for each of the grinder’s main applications which is difficult to believe when you consider the price of this angle grinder.

As if this litany of plus-points was not enough, you’ll be covered by a class-leading 3-year limited warranty. This demonstrates clearly how the manufacturer takes pride in the longevity of its power tools. After all, no company doles out a guarantee expecting to lose out on the deal which can only be good news for potential customers.

Take a tour of the shower of benefits the PORTER-CABLE will bring your way before reading our verdict and checking out our final angle grinder review for today…

Why we like it

  • Ultra-light at just 4 pounds which is incredible given the outstanding grinding and cutting power on tap
  • Extremely potent 7-amp motor generates a rapid 11,000 RPM disc speed making this grinder a weapon on any job site
  • Grinding and cutting guards both tool-free so you can save time and money with seamless adjustments
  • Cutting wheel and grinding wheel included which represents exceptional value given the low cost of this disc grinder
  • Spindle lock allows you to change the wheel with the wrench provided fuss-free
  • Gear housing fashioned from cast metal which helps get rid of heat and ensures it can withstand plenty of punishment
  • 3 positions on the handle gives you the scope to customize the feel of your grinder
  • Will serve you well even under heavy use on the work site
  • 1-year service contract allows you to buy this angle grinder without fearing stiff repair bills

Conclusion

A significant body of user reviews shows clearly that PORTER-CABLE angle grinders are built to stay the course. This video, for example, showcases a 7-year old model that’s still going strong and refusing to give up the ghost!

As they continue to develop their cordless tools, the advances made by this innovative power tool titan spill over into the corded models. This angle grinder is a beneficiary of that weighing less than 4 pounds but still packing a considerable punch.

For the committed home hobbyist or the demanding contractor, this PORTER-CABLE 4 ½-inch angle grinder is an essential piece of kit. The only thing you’ll be left questioning is how you put off buying one for so long when you clap eyes on the price tag and then experience the grinding power at your immediate disposal. Check out this disc grinder and cut-off tool at your earliest convenience.

Main Features
  • 13 ½-amp motor
  • 9600 RPM
  • 6-inch wheel
  • Electronic Speed Stabilization
  • Safety clutch
  • Metabo Quick System
  • Overload protection
Rated as
4/5

To round out our best angle grinder reviews, we’ll tail off with something slightly different…

We have deliberately lasered in on 4 ½-inch grinders for the most part since the average home user wants something small and, ideally, affordable. That said, we want to cover as wide a spectrum as possible so we’re ramping things up in terms of size and output here and looking at a 6-inch disc grinder from Metabo for those with slightly more ambitious requirements.

Although the Metabo is much more expensive than the 4 ½-inch angle grinders above, it’s unfair to level a price comparison as it occupies a different range of functionality and comes packing a number of electronic goodies…

The core purpose of this grinder is enabling you to carry out really taxing and sustained grinding and cutting projects whether at home or out on site. Kicking off with the 13 ½-amp motor, you’ll be rewarded as soon as you fire up the Metabo with an extremely torquey powerplant. You’ll notice the difference in output over a smaller grinder as soon as you see the rate of removal and you’ll appreciate instantly where that extra money went.

If you’re working all day every day with an angle grinder, you’ll understand that maintaining a consistent speed can be a challenge. Metabo throws in Electronic Speed Stabilization so all the guesswork is spirited away. Even if you’re dealing with a tough project, you’ll watch your productivity soar without sacrificing precision.

Another must if you’re wielding your angle grinder for lengthy patches is that it’s too rough on the arms. Although it’s a hard-hitter, the Metabo weighs a mere 6 pounds and change so you won’t end up tired on the job. The ergonomic handle is made in such a way as to reduce vibration while also feeling a pleasure to use.

For anyone working on site or in a workshop where time is money, swift and simple disc changes are essential. All you need to do is hit the button and you’ll be able to exchange the disc for a replacement without interrupting your workflow or damaging your productivity.

All of the electronic features combine to seriously reduce the likelihood of your angle grinder overheating or becoming overloaded under strain. When you think about the functionality offered along with the research and development costs needed to develop it, perhaps you won’t be as reluctant to dig a little further financially for the Metabo.

Since you’ll likely want to undertake both grinding and cutting jobs, you’ll get 2 guards included and you’ll be able to easily flick between the 2 applications.

The proprietary S-automatic clutch is designed expressly to mitigate kickback. If the attachment in place snarls up, you’ll be much more likely to stay in control thanks to the safety slip clutch and potentially saving yourself a flying disc smashing into your face or body.

Before reading our summary and moving on to the buying guide, here’s the lowdown on what the Metabo excels at along with a minor gripe…

Why we like it

  • Extremely torquey 13 ½-amp motor promotes swifter removal of waste material while also protecting the grinder against overload
  • High rotation speed of 9600 RPM makes the Metabo a solid choice for hardcore grinding endeavors
  • Safety slip clutch in place is a superb aid against the menace of dangerous kickback
  • Change discs tool-free by simply hitting a button to simplify your life a treat
  • No danger of grinder overheating even under harder use thanks to electronic overload protection in place
  • Speed stabilizing system ensures that the rotation speed is matched to the application to enhance productivity while minimizing the chance of burnout
  • Non-slip handle also serves to tamp down the vibration for a safe and comfortable working experience
  • Type 27 guard included along with a clip-on Type 1 guard allowing for brisk changes from cutting to grinding as required
  • Weighing just over 6 pounds, this high-performing angle grinder is surprisingly light and compact

Conclusion

If you feel a 4 ½-inch grinder lacks a little oomph, this Metabo 6-incher is the perfect solution.

As you’ll see from the way the advantages stack up against the single notable downside of its price tag, the Metabo is a contractor’s favorite with just cause. Whatever your grinding or cutting requirements, the torque-packed motor, full suite of electronics and lightweight nature all combine to render this disc grinder exceptional overall value even though it’s not the cheapest grinder on the block.

If you’re on the trail of a pokier angle grinder but you don’t want a gas-powered behemoth with all that entails, give the Metabo 6-incher a trial instead and you won’t look back in a hurry. This grinder exemplifies craftsmanship with a focus on the end user so check one out today and give added weight to your grinding capabilities.

best angle grinder: Looking for more information?

Interested to learn more in-depth details about selecting the right tool for your needs? Read our Informational Buyer Guide and Frequently Asked Questions sections on this topic for more details.

Final Words...

We trust you’ve found this exploration of the best angle grinders useful and packed with pointers to make your buying decision super-simple.

Once you’ve doubled down on what you aim to use your angle grinder for and thought about the different types of wheels you can press into action, getting the best disc grinder is a straightforward job.

Drop us a line any time at all if you have any questions or feedback. We’re highly responsive and we’ll get back to you promptly.

Before we round out, we’ve collected together 10 of the most frequently asked questions about angle grinders. Take a glimpse at these before you leave us for today and make sure to come back soon!

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