DEWALT Angle Grinder Tool, Paddle Switch, 4-1/2-Inch, 11-Amp (DWE402) , Black

(9 customer reviews)

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Plastic / Metal


Next Generation 11 Amp AC/DC 11,000 RPM motor of angle grinder provides the best power to weight/size ratio available

Dust Ejection System provides durability by ejecting damaging dust and debris particles that enter the metal grinder

Oversized brushes of this DEWALT angle grinder provide 2 times brush life over previous model (D28402)

Large spiral bevel gear provides long transmission life

One-Touch Guard allows for 360 degree rotation of the guard with a single action

Quick-Change Wheel Release allows tool free wheel removal without need for a wrench

Top mounted and protected spindle lock button maximizes depth of cut without comprimising durability

Uniquely small gripping surface in this power class allows for the best comfort available in this class

Newly designed side handle provides excellent ergonomics while oversized threading provides durability

Auto-off brushes shut the tool down when the brushes need replacing to avoid tool damage

11 Amp AC/DC 11,000 rpm motor which provides the best power to weight/size ratio available

Dust Ejection System provides durability by ejecting damaging dust and debris

One-Touch Guard allows for 360 degree rotation of the guard with a single action

Quick-Change ™ Wheel Release allows tool free wheel removal

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SKU: B00RVZ7DNO Category:

From the manufacturer



Part Number


Item Weight

‎6.2 pounds

Product Dimensions

‎15.63 x 5.94 x 4.81 inches

Country of Origin


Item model number


Is Discontinued By Manufacturer





‎Angle Grinder only




‎Angle Grinder Tool

Power Source

‎Corded Electric


‎120 Volts



Item Package Quantity


Batteries Included?


Batteries Required?


Warranty Description

‎3 year limited manufacturers warranty





Customer Reviews

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Best Sellers Rank

#5,364 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement)#3 in Power Angle Grinders

Date First Available

January 6, 2015

9 reviews for DEWALT Angle Grinder Tool, Paddle Switch, 4-1/2-Inch, 11-Amp (DWE402) , Black

  1. Amazon Shopper

    If you are a DIYer, this tool should be in your toolbox. It is so versatile. So far, I have used it to cut back old tile, grind out old thin set, cut marble tiles around light switches, cut through metal, and more! I have only had the tool for a little over a month and it has already come in handy for a plethora of projects around the house. It’s very powerful, but it has a handle that you can use for stability, and I like that you switch it to either side. You can pretty much get all of the different types of blades at the hardware store which makes it really convenient. I would say the my only suggestion would be to have a small picture graph of the blade installation for an easy reference. You really have to dig in the manual to find this information. Overall, I have a lot of DEWALT products and the company hasn’t failed me yet. I would purchase this product again.

  2. Bill Gradwohl

    The power is immediately noticeable. I intend to use these for knotted wire cup brush use where the power is really needed. You don’t need the power for a cutting disk as any less powerful unit will easily do. The power also comes in handy when flap discs start to wear out and you have to press harder to get the last bit of use out of that item.These are also very smooth and low in vibration. The paddle switch is easy to use and since you have to hold the tool anyway, is the only way a dangerous tool like any angle grinder should be used. I learned that lesson the hard way when I had an angle grinder with a normal on/off switch get wrenched out of my hands and it proceeded to climb up my chest and flew over my shoulder and continued gyrating on the ground till I unplugged its power cord. I no longer own an angle grinder with an on/off switch and I own 11 angle grinders.


    This thing is a certified beast. I mean the blade spins at such a high rate of speed it almost feels lighter when operating. I’d say you must have good forearm strength to manage this beast. This thing is NOT under-powered. I’ve found DEWALT tool quality to be pretty consistently better than average. I would not think twice about buying a DEWALT branded tool because their quality has NEVER let me down. I have DEWALT drills, saber saws, and other saws. Everything works like a draft horse.This device has unique blades for every situation so it is robust and versatile. The device has easy to grip handles that are padded just enough to keep discomfort away. The vibration you feel after using this tool is much like the vibration one feels after riding a motorcycle over a moderate distance. This is a powerful well made DEWALT tool not a toy. If you are man enough to hold on to it this tool can do any appropriate job just fine.

  4. EdCaffreyMS

    Although I do the majority of my angle grinder work with a 7″ grinder, I also do a fair amount of work with a “small” angle grinder. I purchased this as a replacement for a Milwaukee 4 1/2″ angle grinder. This grinder has noticeably more power, is more comfortable to use, and one feature I really like is the use of a large allen wrench to tighten/loosen the wheel nut. Most other grinders require you use a spanner wrench AND a shaft wrench. This grinder has a spindle lock button, and a single allen wrench (included) to tighten/loosen the wheel nut. It’s a very simple and slick solution to the hassle of having to use two different wrenches to change wheels/discs. About the only CON I can see so far is that there is a safety “lock” on the paddle on/off switch (if you use an angle grinder much, don’t ever buy one with a slide switch…they either wear out quickly, or jam up from grinding debris after a short time)….. which is awkward/difficult to manipulate when wearing gloves, and tends to “stick” when it gets dirty from grinding swarf/dust. I will likely remove it…. it’s held in by a simple “roll pin”. This grinder carries a 3 year warranty….. we’ll see how that plays out….. I use grinders everyday, and likely put more work on one in a year then most people would in a lifetime.

  5. Evan Hilpman

    This is my first angle grinder and I think I’m in love. I used it with flap wheels to resurface a crappy cast iron pan, then switched to SPEEDCUTTER blade to cut down a tree (~6″ diameter) that had fallen on the building, and finished off my angle grinder playday by using a diamond blade to smooth out some rocks that I plan on using for an art project. The tree was definitely wider than I should have been using an angle grinder for… but it was fun!I do wish a little bit that it had a variable speed setting so that I could use buffing wheels without buffing through something in ~1 sec (and almost all buffing wheels have a max rpm that doesn’t work for this bad boy). But I assume that having a variable speed function increases the likelihood that some little part inside gives out and I’d rather have a highly durable workhorse.

  6. Jack E.

    Works fine. I prefer a trigger style grinder with the “tail” handle, but the budget didn’t allow it. The paddle is ok, the safety is kind of annoying.Also, to clear things up, in the q & a about the arbor size. The arbor is 5/8″, with 5/8×11 threads, but the locking flange that holds grinding and cutting discs has a 7/8 shoulder. So any non-threaded accessories should have a 7/8 hole in order to have them sit properly on the flanges. Photo shows .875 (7/8) inches flange shoulder on the micrometer

  7. Richard A. Nardi

    Just got it. Cut through 3/8″ steel OK. “The Quick-Change wheel release allows tool free wheel removal without need for a wrench.” I have no idea what this refers to, but my wheel did not “quick release”. Maybe the instructions should describe this feature. The instructions do recommend tightening the flange with a wrench. No (flange) wrench or even Hex (Allen) head wrench. The four hole flange has two pairs of holes with different spacing. So try both of them if you get a wrench (Dewalt 5140001-90 Angle Grinder Replacement Flange & Wrench). I used the replacement flange that came with the wrench, so it is guaranteed to fit. The flange can get quite tight. I had to hit the wrench with a hammer to break the flange loose,. Again, hardly “quick release”. I hate the little “push the opposite way” interlock lever on the paddle switch, which they use on many products. I’m sure it’s there for their benefit, not the benefit of the customer. Well, the grinder does cut through 3/8″ steel.

  8. Pope Zeke IV

    The diameter of handle is rather thick, feels like holding the wider end of a baseball bat. But it is still maneuverable. If this is too large for ya, ya need the longer model with trigger switch that has a slender handle.I have a 7 amp model by Hercules. I can just feel the difference in the power: 7 amp vs. 11 amp. It grinds significantly faster with the same grinding wheel.I am thinking, maybe I should have started with 11 amp model, but I do not have to change the wheels so often, if I have two grinders.DeWalt is more expensive, but I feel it is worth it, performance-wise and psych-wise. I am 100% satisfied.Addendum: One thing I noticed from the uploads on YouTube: the guys take apart the grinder to show the innards of a brand-new grinder. The brand-new grinder had no grease on the helical gear, although the grease is packed in the housing cavity. I checked mine (I have three, two corded and one cordless), and not one had grease on the drive gear and the helical gear. I took a tiny dollop of grease from the housing, and smeared it over the teeth, and reassembled. They all ran quieter, noticeably. It is an easy guess that the gears will wear faster, until the heat buildup moves the extra grease onto the gears.

  9. Brian H.

    I bought this cause my grinder is a battery milwaukee that lasts about 10 mins of low pressure grinding and my old corded one got jacked out of my garage.I knew full well what the project was when I ordered it. I got a piece of a scrapped machine at work and wanted to use it for ballast in my 4×4 in winter without giving up cargo space with sand bags.I am a truck mechanic and have been for many years. I have put many quality grinders in their final resting place. Most of them you could tell on day one what to expect.This one will be with me at home for the rest of my years. I fed this thing a hot supper for 8 hrs strait upon receipt. amazon got it here 2 days before promised which was exactly when I needed it. I was finishing blowing snow when the mail man brought it and went right to work. I used up 8 cut wheels 3 gemini cut-n-grind (which are awesome) and 6 flap disks.First the bad. The guard is way too big. I am sure it is for consumables that have the built in nut because they are much taller. I cut and sanded it to be correct for the type I use. Then the spindle is too long. with a wheel on it sticks out 5/16 past the nut. so I took er to the belt grinder and with the motor running sanded it flush to the nut…took the nut off and feathered a little chamfer on it. Something inside was chattering when I started. I took the cover/spindle off of the gearbox and smeared the high quality moly grease over the ring gear, which was dry. the sound continued for about 20 mins then went away and it ran as smooth as any I have ever used. I think it may have been the brushes on the commutator getting acquainted.The good. More power than you need. The consumables can only handle so much. It is light weight/power balanced and smooth, after a break in period. Running a grinder is never “fun” so having one that can make the least work of it is important.5 stars is not enough. There is sooo much junk out there now. this is not that. pro grade tool ready to work. 1 star assembled in USA. this is important to me as we make great stuff, I hope they expand on it. I bled red for many years but the future may hold primarily yellow for this reason alone. 1 star for power. 1 for staying cool. 1 for feels good in the hand. 1 star for fast and easy disk change. 1 star forthe cord, very flexible and did not get hot. 1 star for packaging, not excessive and went in my wood burner not the dump. 1 star cause yellow tools are hard to lose in a mess.lost a star as it did not come with the spanner for the nut, surely a packaging mishap. it did come with a 3/8 allen wrench that I have no idea why. still way over 5. I did have to remove a few wheels with the edge of a table yesterday. You just hold the lock, which is perfect on this tool, tap the wheel on the edge of the bench in the correct direction and it comes right off….you often break the wheel doing this but it is usually not one worth saving if you do.

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