Grinder tool DeWALT
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DeWALT 4.5″ 20V Max XR Brushless Angle Grinder
January 14, 2019 | by Aaron (email) |
An angle grinder is one of those tools you didn’t know you needed. However, once you own one, you can’t imagine not having it. Their versatility can range anywhere from buffing and polishing to slicing through angle iron. Today we’re taking a look at DeWALT’s 4.5″ 20V Max XR Brushless Angle Grinder as part of our ongoing #THDProspective partnership with the Home Depot.
Stuff Lawyers Made Us Say: We’re are continuing our partnership with The Home Depot to provide candid reviews of tools from a wide variety of manufacturers. The Home Depot is both providing the tools for free and compensating us; however, the opinions we express here are our own. Remember, we’ll always be up-front with you when we’re receiving a free product, compensation, or both. And of course, we always strive for objectivity in our reviews.
Notable Features of the DeWALT 4.5″ 20V Angle Grinder
Years ago when I worked remodeling, my foreman liked to say, “Almost all power tools have an automatic cutoff. They’ll automatically cut off a part of you if you’re not careful.” Although his advice was somewhat tongue-in-cheek, it’s stuck with me all these years later, and it’s one of the reasons why I was so excited to see DeWALT put a lot of thought into the safety of this tool.
- Brake – After the paddle switch is released a brake completely stops the wheel within about 2 seconds.
- E-Clutch – An e-clutch senses resistance in the event the wheel begins to pinch and automatically shuts down.
- Kickback Brake – The brake and e-clutch work together in the event of a severe pinch to shut the tool down as quickly as possible, minimizing dangerous kickback.
- Safety Paddle Switch – There is a smaller, secondary switch within the paddle switch that must be depressed before the paddle switch can be engaged. The secondary switch is effective, comfortable, and intuitive.
- One-Touch Guard – The guard is easily rotated 180° by depressing a small lever and rotating the guard until it clicks into one of the many positive stops.
- Reversible Stabilizing Handle – A reversible handle allows both right and left-handed users to comfortably use the grinder.
Performance Testing Of The DeWALT 4.5″ 20V Brushless Angle Grinder
While this isn’t the most powerful of angle grinders, it really isn’t meant to be. If you’re going to be using a grinder often, chances are you’ll be looking at something larger and more powerful, such as DeWALT’s 60V Flexvolt grinders. We put it to the test on some 1/8″ thick 1″x1″ angle iron and it muscled through it without bogging down. This is largely due to the increased power of the brushless motor.
Battery life is typically at the forefront of everyone’s mind when it comes to cordless tools. I was curious myself, so I clamped a couple of old 3/8″ galvanized bolts in my jawhorse and went to town with a Freud Diablo metal cutting and grinding hybrid wheel. After twenty cuts using a freshly charged 4.0 Ah battery, I still had two bars showing on the battery. That’s pretty great battery life and keep in mind that if you purchase the kit it comes with two 6.0 Ah batteries, which should be plenty of juice for most jobs.
Who’s It For And Where To Buy?
The 4.5″ 20V Max XR Brushless Angle Grinder is quite a powerful tool in its own right and is worth serious consideration if you’re in the market for a smaller grinder. Engineered with more advanced electronics, the XR line is intended for professional craftsmen and serious DIYers and it showed in our testing. Pricing is right in line with similar offerings from competitors.
UPDATE: 1/31/19 Check out our quick YouTube overview of the DeWALT DCG413B! Be sure to like and subscribe to be notified when we release new videos.
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.
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Home » Latest Tool Reviews » Cordless Tools » DeWALT FlexVolt 60v Max Brushless Grinder
DeWALT FlexVolt 60v Max Brushless Grinder DCG414 Review
DeWALT DCG414 60v Max Brushless Grinder
Manufacturer: DeWALT Model number: DCG414 Power source: FlexVolt 60v Max Motor size: 2.2 HP Weight: 4.66 LBS
In the last several years, almost every major tool manufacturer has made a concerted effort to increase and diversify their lines of cordless tools. While the obvious benefits of being cordless are well documented, some tools haven’t been able to meet the performance of their corded counterparts. The FlexVolt line from DeWALT aims to offer true replacements to corded tools including the DeWALT FlexVolt 60v Max Brushless Grinder DCG414.
- Battery Type – DeWALT FlexVolt 60v Mac
- Horsepower – 2.2
- Max Watts Out – 1700W
- No Load Speed 9000 RPM
- Spindle Size – 5/8”
- Tool Weight – 4.66 lbs
- Max Wheel Diameter – 6″
Upon first inspecting the DeWALT 60v Max Brushless Grinder, it is fairly large when paired with the 9.0AH FlexVolt battery. The balance of this tool, however, is very good. The handle offers typical DeWALT comfort, (best-in-class in my opinion), and the removable side handle adds usability for right and left-handed users.
The switch is a trigger-type and has a safety override built in. I felt the trigger to be well designed and easy to use during operation. Some of my guys that also used this grinder preferred the paddle trigger design, but that is the user’s preference. One thing I would like to have seen on this tool is a button to hold the trigger engaged, similar to the corded models. I found when grinding for long periods (cleaning up post caps on a welded pipe fence) my hand became a little fatigued and the addition of the trigger lock would have been nice.
The DeWALT 60v Max brushless grinder is part of their Perform and Protect lineup. The DCG414 offers several fantastic safety features.
When the trigger is released, an electronic brake engages, slowing the wheel to a stop in about 1.5 seconds. As with many users, I found this particularly useful. While safety definitely comes into consideration, I also tend to set the grinder down while it is still spinning, which can damage costly materials and repair time.
The grinder can detect when a pinch, stall or bind occurs and automatically engages the electronic brake to protect both the user and the tool.
In conjunction with the kickback brake, when a pinch/bind occurs, the motor shuts off within a tenth of a second. I forced a bind to test this feature and the grinder shut down in remarkable time.
Changing the wheels on the grinder are very easy and intuitive. The wheel lock is well placed and the blade attaches securely to the arbor thanks to the allen wrench operated nut. I would like to have seen an on-tool storage for the included allen wrench, but I typically keep a couple sets handy so this wasn’t a huge deal for me.
One feature that I really liked was the guard adjustment operation. A spring loaded arm that fits into detents allows the user to move the guard to the optimal location. I prefer this to the old clamp style that often failed. To remove the guard, simply push the arm and rotate the guard until it pops off.
An issue I found when using this grinder, was the size of the wheel guard. It is pretty deep/thick and often obstructed full use of the grinder. While not an issue when using the wheel vertically, when cleaning up welds, I ended up taking it off to gain access to the profile that I needed to grind. I would like to see a lower profile version included in the future.
The DCG414 also offers removable screens over the vents that protect debris from getting into the motor of the grinder. These are replaceable and accessed with a phillips head screw. This feature is one that I believe will become a staple among many tool manufacturers as it is a very easy addition to prolong the life of the tool.
The run-time was impressive and under continuous use, a fully charged battery would last approximately 40 minutes. There aren’t many times that I run a grinder continuously as I did when cleaning welds on a pipe fence we built, so I feel this wouldn’t be an issue with most uses.
The most important aspect in all tools that are geared towards replacing corded tools is how does it perform. After using this tool for multiple applications, the power is pretty amazing for a cordless tool. DeWALT claims that it has the same power as their D28144 corded grinder. Although I did not test these simultaneously, I did not feel like the tool bogged down at all during operation. I could cut and grind any material that I wanted without hesitation.
While I found a few flaws in the design of this tool, the overall performance was very impressive. The undeniable power and comfort, in conjunction with its many safety features, make this tool the leader in cordless grinder performance. If you are already invested in the FlexVolt lineup, or demand the most out of a cordless grinder, the DCG414 should be at the top of your list. At 179 for the bare tool, it’s a pretty good deal too.