Dewalt DCG405N Cordless Angle Grinder Review

After years of using grinders, I finally get me hands on a battery powered one from Dewalt!

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[keblawben]

I've had one of these angle grinders for about three years and it will cut almost anything, with the right blade. I even managed a freehand circular hole for a fan in the middle of a porcelain wall tile! Cordless makes it very useable and the brake is excellent. This together with the many other XR tools I have make many jobs easier. It is easy to take their convenience for granted.
However, if I die, please don't let my wife sell them for the price I told her I bought them for!

I have absolutely no use for one of will probably buy

[ottofumbler]

I bought one of these over a year ago, and it's priceless. I bought the Dewalt as I had the batteries. But, it doesn't have to be Dewalt, just any cordless grinder makes a huge difference.

I still use a corded grinder for stone & concrete cutting, but for everything else, this is a must have DIY tool. The cordless type is so handy for metal and plastic pipe, rusted screws & bolts, and a ton of other jobs. Never used it on wood, as I have proper power saws for those jobs.

They do tend to get through a 2Ah battery fairly quickly (10-15 mins), but it's a good reminder not to over-use it.

As I mentioned, I have other angle grinders. One of the features I love about the Dewalt is the Allen key hole for replacing discs. My other grinders require a specific 2-prong tool for changing discs, which is annoying when you forgot where you put it.

[SiAnon]

Bought myself a cordless Bosch angle grinder a couple of years ago cos Not used it much but the times i have used it have saved me a ton of time and effort. Better to have and not need than to need and not have.

[pincombe]

Prob controversial but I prefer the paddle to the switch. I prefer the safety of knowing if I do need to drop the tool quickly that it will turn off. I also find it more comfortable to turn on and off with gloves on while I work.

[bagabooo]

I am a big user of Parkside 20V tools, got their grinder too and every so often for a tool I use a lot I tend to go dewalt. I had a DIY job to cut some angle irons 50x50x6, Parkside was okay, I cut around 16 pieces, but I was really overloading the tool and was thinking I don't want to burn it out (is still perfect for sanding jobs). Got this dewalt, body only, paired it with my 5A Powercell or whathever their newer batteries are, and I am proper impressed - it seems to be on par with the makita chorded one. Really good piece of kit. Batteries by the way never really last too much on the grinders, they are very power hungry. I roll like 2 batteries, one on charger and one on the job, that way I can use it all day no problem.

[maxbradley]

I find that you can get more battery life and cut off wheel life if you are gradually "scoring" away at the steel from the top surface downwards through the 'thickness' of the bar rather than cutting through the full width of it like you were. You have the cut off wheel both above and below the surface of that metal bar which requires a lot more power and wears the disc faster. Not sure if I explained that well

[deanmcclaughlin]

Bought one of these today to get a wheel clamp off. Cheaper than taxing the van 🤣

[MrMonero]

I just used mine today to cut down a whole load of 44mm galvanised scaffold tubes. Went through them like butter 🧈

[jackimo]

Disks should only ever be tightened up by hand as the spindle rotation will tighten the nut when you’re using it. The tool is there to remove disks if it ever grabs as it will tighten the nut harder than you can do with your hands.

[mariusenslin]

Just as a general and my 2cents worth of a comment: (having owned the same unit and “upgrading” to one model up "DCG406N-XJ” for both ease of use and general and better “Safety” due to that switch mechanism in particular, which is extremely dangerous in my opinion @9:29 being a prime example)
-Prop up your work piece, as your back will thank you for it. not to mention have a far better view on what you are doing.
-Get a 54v Flexvolt (I know they are expensive, but its worth the investment) battery as the grinder drains batteries extremely quickly
-When cutting metal (and large, thick pieces in particular), make use of a “Pull push”/“ Constant Back and forward motion” method, as it reduces the amount of disc material being use (cost effective and time between changing discs over), reduce battery drainage and prolong work time, and puts less stress on the motor (does not get HOT as quickly) overall… Also get into the habit of “blowing out” the “vents” as material dust tend to clog it up and increase internal compenent heat…and is one of the prime culprits for grinder motor failure…

[RhysMogg]

DeWalt are actually very good with spare parts if you do lose your locking nut. I got replacements for broken bits on my table saw within a few days. I did go through the retailer though, FFX, and their customer service is excellent. Your mileage may vary.

[Quaker]

I nearly asked on the kitchen step stool video if you had been getting some new DeWalt tools - well now I know that you have at least one new tool. I've been looking at the cordless grinder for a while now. I have not quite justified it to myself as I very rarely need a grinder but as soon as I do your video has helped me make the decision on which one to get. Thanks.

[markpearce]

I have the same one. I agree with your comments a good balance of not being tethered by a power cord and battery life. I run mine on 54v flex volt battery. These are heavier but give the extended run time.

[contessa.adella]

For very little more, I purchased the DeWalt 405FN. Essentially the same, except has a less blunt front ‘flat head’ design, that will reach into tighter spots. Get 5 Ahr batts tho’ cos they devour power.

[BoxxArt]

I got one recently, my advice is have more than one battery with you. It does tend to eat through them. Even 5ah.

[jimcy]

Use mine when I'm working on roofs, taking off TV aerials etc useful but eats batteries for dinner so take spares up with you, saves climbing up and down all the time. Also attache a lanyard so you don't drop it.

[ramibudeiri]

Got one of these a few months back and haven't had the bottle to use it yet. Thanks for the guide. Really helpful 👍

[ozziejed]

Really like my cordless grinders (3 Makita ones, 18v 125mm, 40v 125mm and 2x18v 230mm), however I had a lot of grinding to do over a couple of days recently so bought a corded one as like you say, they chew the juice.

[samc]

I think your cordless staple gun is my favourite