5 Of The Best Cordless DeWALT Grinders Detailed Comparison. DeWALT side grinder

DeWALT DW818 4-1/2″ Angle Grinder

Angle grinders are essentially standard equipment in metalworking shops from home based to full-on factories. The DeWALT DW818 4-1/2″ Angle Grinder is often found in shops of all sizes because it is very capable, well-built and economical. When I went looking for an angle grinder for my shop, the DeWALT DW818 4-1/2″ Angle Grinder was recommended frequently so I decided to do this review and see how it fared in my home-based shop.

The Basics

The DeWALT DW818 4-1/2″ Angle Grinder is built around a stout 120V, 9.0 AMP motor that sends its power through the nose-mounted gear box to produce a disk speed of 11,000RPM. That kind of speed is great for removing material but also means that you have to pay attention to RPM ratings when buying disks and accessories.

The DeWALT DW818 4-1/2″ Angle Grinder weighs just 5.2 LBS which means you can work longer without fatigue. The barrel-shaped grip area appears rather large in diameter at first but fits the hand fairly well. I think this is a tradeoff between how big of a motor they can stuff in there and how trim they could make the case around it. However they arrived at this shape, it feels good to the hand. The slider ON/OFF button is in a good position to be operated by the thumb for right-handed users.

The grip area (left) encloses a stout motor that makes this grinder effective. The 5/8″-diameter spindle (right) means you can find disks just about anywhere that sells tools! Click images to enlarge

DeWALT includes a large side handle that is necessary for controlling a grinder with this kind of power. The side handle can be installed on either side of the body to make it easier to use for both left and right-handed operators.

To let you do more grinding and less searching for a nearby electrical outlet the DeWALT DW818 4-1/2″ Angle Grinder comes with a 13-1/2-foot-long cord! The DeWALT DW818 4-1/2″ Angle Grinder is not fussy about outlets either as it uses a two-prong plug.

Popular Spindle

The DeWALT DW818 4-1/2″ Angle Grinder features a 5/8 by 11 spindle thread. This diameter is virtually standard in 4-1/2” angle grinders so it accepts disks that can be found just about anywhere there is a big box store or tool outlet. To make changing those disks easier the DeWALT DW818 4-1/2″ Angle Grinder comes with a spanner wrench. The DeWALT DW818 4-1/2″ Angle Grinder also has a pushbutton spindle lock located on the gear case. The button is recessed so it cannot be engaged by accident yet remains easy to use when changing disks.

Friendly Guard

A pushbutton spindle lock (left) is built into the gear housing where it is easy to access. The guard (right) can be turned to the best location by simply opening this lever lock.Turn the guard where you need it and close the lever to lock it in place. Click images to enlarge

An effective guard is mandatory on a grinder with this level of power and speed. The DeWALT DW818 4-1/2″ Angle Grinder comes with a guard that offers good protection yet is user friendly. The guard covers 180-degrees of the disk but because grinding jobs often have limited access the DeWALT DW818 4-1/2″ Angle Grinder guard can be easily repositioned. Flip open the locking lever, turn the guard to where you need it and push the lever closed to secure it in place. That simplicity means that there is no good reason to not use the guard.

In the Shop

I was on the process of building a welding machine cart when I got the DeWALT DW818 4-1/2″ Angle Grinder and it proved itself to be a worthy tool throughout that project. Grinding off old mounts and smoothing over exuberant welds were handled easily and quickly. I installed a cutoff disk and slicing larger mounts away was also very quick. Controlling the DeWALT DW818 4-1/2″ Angle Grinder is reasonably easy considering the power available. You do have to pay attention to how you are holding it to prevent side loading the disk but hold it straight and the DeWALT DW818 4-1/2″ Angle Grinder removes material very well and from the spot you want!

The long cord is also a welcomed feature. I was able to work my way around my cart project without constantly having to move the cord or find another outlet. I love it when a tool company forgoes a small bit of profit they could have gained by shorting us on a tool power cord.

The power of the DeWALT DW818 4-1/2″ Angle Grinder handled everything I could think of with ease. I never felt that I lacked power or that RPM was dropping off. I suppose you could lean on this (or any) grinder hard enough to slow the disk but that kind of pressure has to be close to exploding the disk. Keep a good disk on the DeWALT DW818 4-1/2″ Angle Grinder and let it do its work!


The DeWALT DW818 4-1/2″ Angle Grinder is notable in the immense 4-1/2” angle grinder market. It is well built, comfortably designed and very capable. I have no doubt that with common sense care and use, the DeWALT DW818 4-1/2″ Angle Grinder will last a very long time.

The street price for the DeWALT DW818 4-1/2″ Angle Grinder hovers around 89.99 (9-7-2010) so it is as good of a value as it is handy. You certainly can spend money more foolishly than buying a DeWALT DW818 4-1/2″ Angle Grinder. If you need an angle grinder in this size, the DeWALT DW818 4-1/2″ Angle Grinder should get a hard look.

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Of The Best Cordless DeWALT Grinders [Detailed Comparison]

You will need to look at the grinder itself for the capacity and power to cut what you need it to cut AND get the right battery so it lasts as long as you need it to, a combination of both elements!

I laid out all of the available models that DeWALT currently carries (updating as needed) and compare them side-by-side looking at reviews, features, the specs and many other elements to help others decipher which model is best suited for their needs. Hope you like it!

The DeWALT DCG412B. The Most Affordable Grinder In The Lineup.

The DeWALT DCG412B is one of the most affordable models that DeWALT makes but is intended as a lower end model and is best suited for light-duty use, compared to the other models.

There are no special features like you find on some of the other grinders and is basically intended for small cutting and grinding tasks, where a grinder is needed but where a corded model wouldn’t be efficient.

As with all grinders, you will need a decent battery for improved runtimes, I would recommend a 3.0Ah battery AT LEAST.

The major complaint with the DCG412B was battery life and is mainly a result of not having knowledge about cordless grinders and the juice they use.

I found a helpful video on YouTube where a man cuts roofing tiles (cement) using a diamond blade, the DCG412B and a 3.0Ah battery.


What Stood Out Above Other Models

The DCG412B was much cheaper than the rest of the other DeWALT grinders and was well under 100 at the time so it can easily be added to your collection without breaking the bank.

The DCG412B also had the most number of reviews online, out of all of the cordless grinders I looked at. There were over 750 in total!

I like the fact that the DCG412B is a 20V model, which is a huge improvement over the older 18V grinders (users have stated this as well).

20V tools will give a little more power and it is designed to be a little more comfortable and more ergonomic over the older models, as well.

What I Noticed That I Didn’t Like.

The DCG412B is affordable but is also a basic cordless grinder. It has enough power for smaller tasks and if you are using a decent Ah battery, it will last for several minutes. Nothing special about it though!

With that said, the DCG412B is not going to have the power that a brushless model would and if you compared it to the newer 60 grinder, it seems to come up very short.

Having a brushless motor would have made the tool a little better but I’m sure it would have jacked the price up quite a bit, probably closer to 100.

Kits For The DeWALT DCG412B?

I found a kit that comes with two 5.0Ah batteries, a charger, the DCG412B and a soft carrying case for everything. The kit is the DCG412BP2.

The kit was much more expensive than the bare tool alone but comes with the recommended batteries, so it is a complete kit.

It was priced a little bit more than 300 at the time and was more than 200 difference, compared to the bare tool alone.

The DeWALT DCG413B. A Balance Between Price, Functionality Features.

The DeWALT DCG413B is really just an upgraded version (of the DCG412B) and is still considered one of their lower end cordless grinders but has many features that the DCG412B does not.

The DCG413B has a brushless motor and uses DeWALT’s E-Clutch System and their Kickback Brake as well, making it much safer and more efficient.

The price was about double what the DCG412B was, coming in at around 140 at the time. A great entry level grinder, still for light. medium duty use but has modern features offered by DeWALT and is a great balance of price and features.

The was a pretty in-depth video online that explains the features of the DeWALT DCG413B and the DCG413FB and even shows him cutting some metal so you can get a feel for runtime, performance and so on.


What Stood Out Above Other Models

The best thing about the DCG413B is that it is a great balance between price, feature and functionality. You get a decent tool with some of DeWALT’s upgrared features at a pretty reasonable price.

These upgraded features include the brushless motor, making it run more efficiently and is less likely to overheating problems. The electric brake and DeWALT’s E-Clutch system is also two added features that control blade speed.

What I Noticed That I Didn’t Like.

I really wished that there were more reviews online for the DCG413B to get a better overall idea of how it performs and how it stacked up. There were nearly 70, at the time but they were pretty general in nature.

The kit that the DCG413b came with (DCG413R2) was a bit pricey (nearly 350) and is going to be a challenge for some to justify the price but it is a decent kit, which we will look at closer (below).

A Kit For The DCG413B:

The DCG413R2 was the kit I found for the DCG413B and it came with two (6.0Ah) batteries, the DCG413B, a charger and a carrying case.

The kit for the DCG413B was around the 350 mark and was only a little bit more than the DCG412B’s kit and well worth the extra money.

You get the 6.0Ah batteries, instead of the 5.0Ah ones and the upgraded grinder with so many more feature and a higher RPM range.

I would opt for the DCG413R2 over the DCG412BP2, a way better value!

The DeWALT DCG414B. The Best Cordless DeWALT Grind Available!

The DeWALT DCG414B is the best performing model in the lineup and has some of the richest features as well.

The DCG414B is able to use a 4-1/2″ disc, all the way up to a maximum diameter of 6″, so the versatility in this feature alone is a huge bonus.

It is also a 60V model which DeWALT claims to have as much power as a 13 amp corded grinder.

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The head actually rotates and has 3 different positions you can set it in, a brushless motor and implements DeWALT’s E-Clutch System and their Kickback Brake By far, the DCG414B is the best cordless DeWALT grinder in the lineup!

I found a helpful video on YouTube where a helpful user explains all of the features of the DCG414B in a pretty decent video. He also cuts a few different materials, not very in-depth but is an okay demonstration of it’s cutting ability.


What Stood Out Above Other Models

The biggest thing that stood out from the other grinders was that the DCG414B is a 60V model and really outperforms any other model, hands down!

The DCG414B also is the most feature-rich model in comparison and has all of the updated features that DeWALT uses in their cordless grinders. The DCG414B also has a couple of unique features like the rotating head and the 60V power.

The ability to use a range of different discs (4.5″. 6″) is another very cool feature and makes the tool much more versatile and better suited for a wider range of applications.

What I Noticed That I Didn’t Like.

The DCG414B was one of the higher priced grinders on the list but well worth the investment, especially if you plan on using a cordless grinder 3-4 times a week or more.

I really wanted to see more ratings for the DCG414B but out of the nearly 50 or so I found, nearly all of them boasted about the surprising power it had.

There were a couple of quality issues but very few at the time and not dealbreaker, in my opinion.

The 60V batteries (Flexvolt) are a little bit more than standard 20V batteries so the additional cost of extra batteries (which are recommended for grinders) will set you back an additional 100. 300.

2 Different Kits For The DCG414B.

There were two different kits for the DCG414B and the only difference was that one came with one battery and the other came with two batteries.

The DCG414T1: This kit came with one battery (6.0Ah), a charger the DCG414B and a carrying case (soft). This kit was around 300, at the time.

The DCG414T2: This kit was identical to the kit above in what’s included but you get two (6.0Ah) batteries instead of one. This kit was a little bit more, coming in at around

The DeWALT DC411B. An Older Grinder That May Appeal To Some.

The DeWALT DC411B is probably one of the oldest grinders, as far as date released goes and uses the 18V batteries, instead of the 20V ones.

The DC411B was one of the cheapest models (besides the DCG412B) but is still very popular and had a fair amount of reviews backing it up.

The ability to use DeWALT’s 18V batteries was one of the biggest selling points of the DC411B.

The DC411B is a basic grinder, like the DCG412B and operates at a much lower RPM than any other model. If you need a basic grinder and want to use you 18V batteries, then this is the model I would recommend.


What Stood Out Above Other Models

What stood out about the DC411B was the fact that it could use DeWALT’s 18V batteries. These are cheaper and most people have these lying around, so chances are that you won’t need to buy extras.

The DC411B was one of the more affordable choices in the lineup, coming in at around the 100 mark. The DCG412B was comprable but is a 20V model, not an 18V.

There were tons of ratings online for the DC411B (nearly 400 in total) which provides a great deal of feedback, giving you an idea of what to expect and what applications it will ideally work better for.

What I Noticed That I Didn’t Like.

I stated that the use of the 18V batteries as an advantage for the DC411B but it is also a disadvantage because they are the Ni-Cad batteries, not the Lithium-Ion ones. These are not as light, have less juice and are less efficient.

The DC411B is a basic grinder and has nowhere near the power that some of the other models have. The features are also quite antiquated, compared to the newer DeWALT grinders too.

Kits, Extras, Special Features, Etc.

The DC411B did come in a kit and it was the most affordable kit out there but used the old Ni-Cad 18V batteries, so not comparable to the newer Litium-Ion batteries by any means.

The kit was labeled as the DC411KA and it came with the DC411B, a charger, two 18V batteries and a case. The kit was around 220 but was as high as 400, for some odd reason.

The DeWALT DCG413FB. This is What A Longer Title Will Look Like

The DCG413FB is identical to the DCG413B but has a different design to it. It is flatter and is designed to accommodate specialty applications, where a typical grinder design would not perform as well.

This didn’t have hardly any reviews online, so it was hard to gauge how well it works, who would use it more (what trade or application) and how it stacked up.

The specs are exactly the same for the DCG413FB as the DCG413B, so I don’t want to repeat myself and hash out the same information. Just take a look at the DCG413B to get a general idea of what to expect.

The video that I linked to for the DCG413B also shows the DCG413FB in action and gives a little more background info as to what it can do and how it differs from the DCG413B.


What Stood Out Above Other Models

The flathead design is a specialty feature and that is really the advantage it had over the other DeWALT grinders in the list.

The DCG413FB is able to use a 5″ wheel, which is an advantage when it comes to size but may be harder to find a wheel that size at every store.

The DCG413FB had nearly all of the features that DeWALT makes in their new cordless tools and is an upgraded model that uses a brushless motor, the E-clutch system and the electric brake.

What I Noticed That I Didn’t Like.

The biggest thing I was disappointed about regarding the DCG413FB was the fact that there weren’t any reviews to look through, only one at the time on DeWALT’s website. Hard to compare and get a feel for how it performs.

The DCG413FB was one of the most expensive models in the lineup and I’m sure it is due to the design. It came in at around 280 at the time and that was for the bare-tool only!

Any Kits For The DCG413FB?

At the time, I didn’t find any kits that were specifically for the DCG413FB, so that was disappointing and a major disadvantage.

For now, you will have to buy the bare tool (DCG413FB) and batteries seperately or buy another DeWALT kit and the bare tool seperately.

best, cordless, dewalt, grinders, detailed

I will keep this post updated as time goes on and add a kit as they become available!

The Tool-less Blade Change Feature:

The blade change system that I found with the majority of these cordless DeWALT grinder was pretty simple. You hold the spindle lock doen (button) and hand-tighten the nut, like you normally would.

A wrench is included with nearly every tool but DeWALT states that the wrench is really not needed but is available for people who want to use it. That’s what I gathered, anyways.

Many users also stated that the spanner wrench was not needed and placing the nut on the spindle and hand tightening it would hold the wheel in place.

DeWALT’s Kickback Brake System For Their Grinders:

The Kickback Brake that DeWALT uses on some of their cordless grinders is another safety feature and is similar to the E-Clutch System and seems to be used in conjunction with it. It is basically a Smart brake built into the tool that will slow or stop the blade from turning.

When the grinder senses that the blade is pinched, the Kickback Brake feature is then turned on and slows or stops the blade to prevent a dangerous situation from happening.

The E-Clutch System Is Used On Some Grinders:

The E-Clutch System is used on a couple of the DeWALT grinders that made the list and is desidned as a safety feature more than anything.

If the wheel on the grinder is beginning to bind, the tool will sense this and displace the torque by stopping the blade, instead of the grinder making a sharp abrupt turn and possibly injuring the user.

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I could see this feature being utilized more when cutting, rather than grinding and is a nice safety feature to have integrated into the tool. I have had many close calls because of a binding situation and the grinder CAN pull right out of your hands!

Battery Life, Battery Ah And Other Battery Stuff.

Cordless grinders, in general are known to drain a battery within a few minutes so having a decent battery with a higher Ah rating is the best thing you can do to ensure you have the best possible runtime.

I would recommend a 3.0Ah DeWALT battery to be a MINIMUM requirement and will give you roughly 7-12 minutes of working time on a medium-duty grinding or cutting task.

A 5.0Ah, 6.0Ah or 9.0Ah DeWALT battery is even better and will give you extra runtime because of the extra Ah (or cells) that the battery contains. I recommend looking online at some of the DeWALT batteries yourself.

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Remember: The larger the battery, the heavier the grinder will be and for all of these DeWALT grinders, that weight will be at the back end.

DeWALT Cordless 20-Volt 4 1/2-in Angle Grinder. 8000 RPM. Side Handle. Bare Tool (battery not included)

This item is not currently available for immediate purchase, but can be ordered by visiting the selected store.

◊ Information regarding the delivery method for your purchase:

Pick-up in store: Most orders will be ready for pickup within 24 hours of order. Some orders may take up to 7-14 days (where inventory is not available in store). You will be notified by email when your order is ready for pick-up. Once you arrive at the store, you can pick-up your order inside the store or use our curbside pick-up (available at participating stores only). You will find all the information on the procedure and the participating stores list here.

Parcel shipping: Most orders will ship next business day. Some orders may take up to 7-14 days (where inventory is not available in store). Delivery time may vary due to factors beyond our control. You will receive an email when your order has shipped.

DeWalt Cordless Brushless Angle Grinder Review

RONA truck delivery: Our expert center will contact you to book an appointment in approximately 24-72 hours for appliance delivery and 24 hours for the delivery of other types of products. Delivery only include curbside delivery, except for appliances. Delivery service is only available within a 50 km radius from the selected store. Additional charges may apply for installation. For appliances, accessories required for installation must be provided by the customer. The delay for delivery is an estimate and may vary according to the availability of products, or due to other circumstances beyond our control. We will not leave deliveries at an unattended site – note that additional delivery charges may apply for subsequent delivery attempts.

DeWALT Cordless 20-Volt 4 1/2-in Angle Grinder. 8000 RPM. Side Handle. Bare Tool (battery not included)

Frequently bought together

How many amps is this pls.

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DeWALT Cordless 20-Volt 4 1/2-in Angle Grinder. 8000 RPM. Side Handle. Bare Tool (battery not included) is rated 4.5 out of 5 by 130.

Rated 3 out of 5 by Not Happy Still from Never even put a battery on it Bought this to use type 1 this cutting wheels for work, but it only comes with a type 27 (open-side) guard. Called DeWALT to get a type 1 guard. They gave me part #643772-00. Got this guard but it cannot be used on this tool because the guard uses a clamp-on fastener and the tool has a ratcheting release lever fastener. Called DeWALT again to see how to install this type 1 guard and was told to read the user’s manual. Called a factory service center. The guy there researched the part and the tool and said there is no type 1 guard made for this tool. I returned the tool and now I am looking for a tool that will do what I need to do.

Rated 1 out of 5 by romdos from Spindle lock button froze after 2-3 hours use [This review was collected as part of a promotion.] Eats batteries, but good for the occasional grind-down or cut off. I used it to try to even up a small section of concrete and quickly found out that kind of thing is not a for a cordless device. The TERRIBLE thing about this device is the spindle lock button that keeps the disc from turning so you can change discs, suddenly froze up. Can’t push it in at all. Tried tapping it lightly, tried PB Blaster, nothing worked. The DeWALT site doesn’t even show the part on their exploded diagram so you can’t even buy it if it would come apart. I can’t recommend the quality or the manufacturer support. Gonna switch to Milwaukee.

Rated 5 out of 5 by ConsumerX from Works well but a real battery hog. Used this to grind off some epoxy concrete crack sealant. I had two of the smaller DeWALT 20 volt batteries from previous DeWALT cordless purchases. This tool eats up the charges way faster than the others. I could not keep up with one charger and two batteries. Just yesterday, I received my order for a 2-pack of the larger DeWALT 20 volt batteries. That should solve my DIY needs. However, a contractor with serious, prolonged, grinding needs might want to look at the corded model.

Rated 5 out of 5 by Film Pro from For a Cordless Grinder, this really can’t be Beat! All these dudes here with complaints(?) about this Grinder are full of.it ! I mean come on, hello? This is an Awesome CORDLESS Grinder! Ya got a Big Job in your Shop? So use one connected to 110. Like all DeWALT 20V tools, this one Rocks for outside Job Sites or when you don’t have access to your Generator. In my case, I build Movie Sets, often out on remote Locations, so this is a 100% must-have Tool in my Kit. And NO. I am NOT paid for my Opinion. IF you are ever in a Sound Stage in LA and can watch the Art Dept at work, you’ll see DeWALT tools all over the Set! No Brainer! ‘Nuff said!

Rated 4 out of 5 by PASs from A nice addition to my 20V max tool collection I already have a DeWALT 20V max drill and 1/4 inch driver set and recently got two additional 3.0Ah batteries so I decided to look for additional tools based on that battery system. I also have 2 DeWALT angle grinders, but they are corded and I wanted something I could grab and use quickly without the hassle of pulling power cords out. This was the perfect answer to all those requirements. Although it isn’t as strong or as fast (rpm) as the corded grinders it works great for small jobs.

Rated 5 out of 5 by Tom from Great tool ! I use this grinder for sharpening large, heavy blades on farm equipment. Great designed tool.

Rated 5 out of 5 by Lestina from Great Grinder Grinder performs great. To get the most out of it, if used in heavy duty grinding though, you need a 4 amp battery. Great tool. Performs well.

Rated 3 out of 5 by Gary from DeWALT 20v grinder Wished I would have done more research on this product. I absolutely love DeWALT, growing up as a child watching my father and grandfather work I knew DeWALT was and still is the most professional, most reliable battery powered equipment. I own many DeWALT 18 and now 20v Li power tools. Heck I even tossed the Echo weed trimmer for the DeWALT 20v brushless. So the problems I had with the 20v grinder is simple. It eats batteries. A 5aH battery will net you about 5 mins tops for grinding. A 1.5aH battery last about 2mins. I have 2 chargers in my shop so I didn’t see this as much of a problem till I realized the battery’s where too hot to charge after use. It takes about 15-20 mins for the batteries to cool down and take a charge. My second problem was the arbor shaft on mine was either out of balance or bent. Using a grinding wheel it would bounce a lot. And yes, it was installed correctly. I even changed out the grinding nuts with others to try and isolate the troubles. A cut off disc wouldn’t work either because of the vibration it would bounce around. I really wanted to like this as this is actually a 5” grinder. For bigger jobs I use a 7” 3m cubitron 2 disc and when they wear down I save them. Luck would have it the wheels would fit it. After day one with all the problems I took it back to Lowe’s and got the 4-1/2 DeWALT brushless and man is it worth the extra 40. I can get nearly 20 minutes of continuous grinding. DeWALT makes great tools. But if unless you are a hobbiest I would go with the better XR brushless. Hope this helps.

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DeWALT Cordless Angle Grinder Review

As someone who knows plenty of blacksmiths and welders, I would say that over 75% of them have a DeWALT grinder in their starting lineup. Granted, these are mostly corded grinders, but DeWALT has gotten it right with their angle grinders compared to other tool manufacturers. Yet again, they grind their way towards the front and hit the mark with the DeWALT Cordless Angle Grinder Review.

DeWALT Cordless Angle Grinder Review Overview

In an array of cordless angle grinders, only a few stand out due to the nature of the tool. The angle grinder, at its core, is an intense tool. One for cutting through very hard materials like concrete and steel. To do this, it requires substantial power and high-performance motors. It also requires a rugged design that plans for the longevity of use in rough environments. On top of all of these factors, safety is key. The angle grinder can become a very dangerous tool if misused or defective. Taking all of this into consideration when making a decision on a cordless grinder is important for homeowners and professionals alike.

After using the DeWALT, I definitely like it. Admittedly, other than my weird obsession with drill/drivers, angle grinders are my “favorite tool.” But to be completely candid, for someone like myself who does a large majority of work from a home shop, it’s hard to replace a corded grinder. On the other hand, the pesky cord is a huge annoyance to me and a safety concern. With that being said, from now on, I’ll leave the corded grinder in the cabinet for when I absolutely need it. The cordless tool has yet again won me over, especially since the DeWALT has some great features and tremendous build quality.

DeWALT Cordless Angle Grinder Review Features

Truth be told, on the grinders’ I had growing up when learning to weld, there were no guards. recently, my corded grinder is absent of one as well since it had perished after a hard drop. This DeWALT has one that will stay on! The very robust type 27 steel guard is adjustable and locks to whatever position you desire. Being able to direct your sparks and residual chips is important, and this guard does a fine job. Also, this model sports a 4.5in wheel, the general standard that is perfect for almost any application. Additionally this grinder runs on DeWalts 20V battery platform.

As I mentioned above, angle grinders can be dangerous to operate. In case of an accident you definitely want the cutting wheel to stop as fast as possible, rather than wind down. To accomplish this, there is a brake feature in the tool. Now, don’t confuse this with an actual device braking the rotation of the business end. Instead, via the motor, all current Is cut, and the gears stop within 2 seconds or less. This happens during any binding, pinching, or stalling occurs.

The brushless motor on the DeWALT turns at a nicely paced 9000 RPM under no load. Sure to be more than enough juice for any project. To learn more about brushed and brushless motors, be sure to check out this recent article that explores their key differences.

The two-stage trigger is a great best practice that has been incorporated into the tool. Before the paddle can be depressed, another small trigger must be activated. This reduces the risk of accidental activation.

The general tool construction is very well done. The tool shell is composed of a material that we’ve discussed in the past and can be found here in What Your Tools Are Made Of. The PA66 30% glass fiber reinforced plastic is strong, impact resistant, and sturdy. The tool shell was also well molded, and was very easy to snap back together after looking under the hood.

In addition, I was happy to see plenty of parts either machined or turned on a lathe throughout the tool, a clear sign of quality.

The butylene rubber overmold is done quite nicely, with dovetail molding into the tool shell. The material is generally grippy, and this overmold is quite thick as well.

Grinding is messy, and DeWALT has done a pretty good job of minimizing the ingress of dust into the internals. Importantly, while still allowing ventilation of the motors. This is accomplished by some mesh vents installed near the rear of the tool. The mesh looks to be suitable for the micron size associated with metal and concrete grinding and is secured to the tool shell, rather than being part of the mold. I suspect that this is to allow some cleaning of the mesh. If so, great job on DeWALT for the design!

As for the rest of the tool, no unnecessary holes are present, and the trigger surprisingly has a boot to prevent debris from traveling into the switch. Overall, DeWALT has done a great job of reducing debris creeping into the tool.

As with most other quality angle grinders, access to the gearbox is quite easy with the removal of the gearbox shroud.

Once inside the main housing, the gears look to be of good quality, and liberally lubricated with the water-resistant, lithium-based molybdenum disulfide grease. If in the event your gears ever wear out or become damaged, replacing the drive gear, and accompanying spiral pinion gear is very easy. This is due to this Smart design with easy access to the gearbox.

DeWALT Cordless Angle Grinder Review Performance

I really took my time in the testing, teardown, and during actual projects with this grinder and I’m flat out impressed. Angle grinders take a beating and should be made for this, accordingly. The DeWALT just flat out delivers.

When cutting and grinding carbon steel for knife making blanks, I zipped through a rough cutout in just seconds, then switched discs and began some very effective grinding.

The same can be said for concrete. I tested on several bricks and drained my battery while seeing how effective the tool was against one of the toughest challenges for grinders. Lastly, for a tool restoration, I’m working on, I was able to quickly and elegantly reface an antique masonry hammer. Overall, through everything, the DeWALT was effective and ergonomic. Obviously, this was best paired with their 20v MAX 5mAh battery!

DeWALT Cordless Angle Grinder Review Value

Having quality tools that handle tough jobs with metal and concrete is important, and not a place to skimp. And as mentioned above, build quality should be on par with price, since these tools will be taking quite the beating. The DCG413B is an example of extreme build quality and reliability for the money. You can grab the bare tool at The Home Depot for 169.00, a great price for a tool that will certainly last you a very long time.

DeWALT Cordless Angle Grinder Review Final Thoughts

After a long span of thinking that corded grinders were the only way to go – I’m turned! This DeWALT proved in such a short period of time that quality, price, and reliability can culminate together! In times when corners are cut for cost savings and profit margins by many competitors, DeWALT has proven again to be a front-runner, the DCH413B is proof of that!

DeWALT has done it yet again within their 20v MAX line. The DCG413B delivers to any user that is used to a corded grinder, without the hassle of a power cord. The build quality, performance, ergonomics, and overall fit and finish is impressive for a very low cost in comparison to its competitors.

Milwaukee vs. DeWALT Angle Grinder: Which Brand Is Offering ?

An angle grinder is a versatile power tool DIY workers commonly use to sand or cut through stuff like concrete, metal, and stone. Starting from wood jobs to construction sites, there is a place for angle grinders everywhere.

Now, whether you are a professional or just a DIY worker, choosing a brand for purchasing an angle grinder is a challenging task. So, to make the decision easier for you, we filtered the brands and brought you two of the most prominent brands in the angle grinder market today.

Both brands, Milwaukee and DeWALT, offer all the great qualities we used to see in our power tools. However, while both of them are pretty popular, each has its advantages and drawbacks too.

In this article, we will discuss and compare each of the critical aspects of these two brands and then review the angle grinders to know more about the brands and the value it provides. So without further ado, let’s begin.

Brand Value And Manufacturing

In short, the brand value represents the reputation and reliability of a particular brand to its customers. If one thing affects the buying decision most in today’s market, that’s brand value. Over the years, both brands have established a good name for themselves with quality products.

Both brands have hundreds of popular tools under their belt. However, if we take one product category where both brands compete hard, the cordless angle grinder has to be. We’ll come to that later in this article.

Coincidentally, both tool giants were founded in 1924. Since its foundation, DeWALT was exclusively a US-based company manufacturing its products with strict quality control and selling them all over the globe. On the other hand, the ownership of Milwaukee has changed quite a few times over the years.

Because of the frequent change, we have noticed ups and downs in their product quality throughout history. However, right now, Milwaukee has been owned by a Hongkong-based company Techtronic Industries, since 2005. Under its ownership, Milwaukee has successfully regained its lost quality and reliability. Like DeWALT, Milwaukee’s production is also exclusively US-based.

Performance And Innovation

As mentioned previously, DeWALT and Milwaukee are two of the most famous names worldwide regarding power tools. Apart from everything else, their performance is the single crucial factor helping them make a name for themselves in the industry.

Again, it’s tough to answer which brand offers better performance with their products as the performance graph has gone up and down over the years. DeWALT has been a symbol of reliability in households with trademark black and yellow color since its formation. On the other hand, Milwaukee has become more popular only in the last two decades after the previous ownership change.

You can take the angle grinder from both these brands, for example. The reason behind Milwaukee’s increasing popularity was its self-sustained product lineup. They introduced lithium-ion battery packs for products like angle grinders, making them more handy and efficient to use. Later DeWALT tried to fight back with their slide pack, but that wasn’t a big success.


When it comes to price, none of these brands like other bargain alternatives in the market, both these brands never compromised the quality for a lower price over the years. Though the price depends on a particular lineup, the majority of the Milwaukee products cost more like its angle grinders.

Milwaukee’s better design and battery technology could be potential reasons behind the price increase. On the brighter side, DeWALT offers more options at budget segments for non-professional people who need power tools. The bottom line is, it’s not possible to advise one of these brands considering the price only. Whatever price gap their products have, it’s nothing significant.


Warranty is a good indicator of quality for a product. Though both brands’ products are famous for withstanding extensive use, a warranty further ensures a longer service period. A reliable warranty service covers each product by both brands—the warranty period changes depending on the particular product lineup. Still, we are trying to give a rough idea here.

A three-year limited service warranty typically backs up DeWALT’s products alongside one year of free service and 90 days money-back guarantee. You can check out the warranty period of a specific product here.

On the other hand, Milwaukee’s warranty ranges from three to seven years, depending on the tool. For their famous battery packs, the warranty ranges from one to three years. For detailed warranty information on Milwaukee products, you can check here.

Milwaukee’s better design and battery technology could be potential reasons behind the price increase. On the brighter side, DeWALT offers more options at budget segments for non-professional people who need power tools. The bottom line is, it’s not possible to advise one of these brands considering the price only. Whatever price gap their products have, it’s nothing significant.

Milwaukee Or DeWALT: Whose Angle Grinder Are Better?

Now that you know what each of these brands offers. Let’s get into some product reviews to have a better look at the brands. In this part, we’ll be reviewing DeWALT and Maiwaukee’s angle grinder and see how they perform.

DeWALT DCG413B Cordless Angle Grinder

An angle grinder is an immensely power-hungry tool that requires ample power to run. So for cordless variants of angle grinders, the performance drops drastically for lack of power. However, the DeWALT 20v brushless grinder kit has fantastic performance and convenient use despite being a cordless angle grinder.

This May Be The Best DeWALT Cordless Angle Grinder

The first noticeable thing about this grinder is its brushless design. This design will save you from going through the hassle of changing brushes again and again. DeWALT angle grinder made in the USA features a type 27 half fence with the angle grinder, which you can easily adjust and lock at any position you want.

By default, the grinder comes with a 4.5″ wheel, the most available wheel size around. The 20V motor puts up a stellar performance with 9000 RPM to handle anything you throw at it for a cordless angle grinder.

The only drawback we noticed is the lack of included battery and charger. You have to purchase them separately.

Overall, the DeWALT DCG413B is an excellent portable angle grinder with a price-to-performance ratio. Additionally, three years of DeWALT angle grinder warranty makes it one of the most balanced choices on the market.


  • Easy portability
  • Two-finger trigger for extra safety
  • Adjustable guard
  • Brushless design
  • Three years warranty
  • Powerful motor

MILWAUKEE’S Cordless Angle Grinder

Milwaukee doesn’t need an introduction when it comes to power tools. This time, Milwaukee has put all its effort into producing the best Milwaukee angle grinder. Like the previous DeWALT model, this one too offers a brushless motor that guarantees a longer lifespan.

The 18V motor can rotate up to 8500 RPM. Considering it’s a cordless angle grinder, that number is pretty impressive.

As a handheld tool, shape and design are essential for efficient operation. So in that sector, Milwaukee gets total numbers with ergonomic design and an attached sidebar.

You can use a battery from 1.5 Ah to up to 5 Ah. However, no battery is included with the grinder. As the grinder has a considerable power consumption rate, you should buy two battery packs to work longer flawlessly. If you previously owned a grinder from the M18 lineup, that battery can also be used with this model.

Compared to the previous option, this one is a bit expensive. However, the versatility and performance of this angle grinder justify the higher price tag. Additionally, the metal housing and ergonomic design make it a great buy in today’s market.


  • Ergonomic battery with sidebar
  • Durable yet lightweight construction
  • Outstanding performance
  • Brushless motor
  • Tool-less wheel change

Final Words:

That’s a wrap for today. After the comparison, we hope you have proper knowledge about these two brands of angle grinders. There is no clear winner here as you can see each brand excels at separate departments.

So, the ultimate decision comes down to your needs and personal preference. But, no matter which brand you choose, one thing guaranteed is that you’ll be satisfied by the quality offered by these brands.

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