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DEWALT Angle Grinder Tool, 4-1/2-Inch, 11-Amp (DWE402K)

4.8 4.8 out of 5 stars 6,131 ratings

With Kit Box
Brand DEWALT
Material Plastic
Product Dimensions 16.06"L x 7.91"W x 5.98"H
Style With Kit Box
Power Source Air Powered

About this item

  • 11 Amp AC/DC 11,000 RPM motor of the angle grinder is designed for faster material removal and higher overload protection
  • Dust Ejection System provides durability by ejecting damaging dust and debris particles that enter the metal grinder through the air intake vents
  • DEWALT angle grinder comes with low profile gear case allowing access into tight spaces
  • Quick-Change wheel release allows tool free wheel removal without the need for a wrench
  • One-Touch Guard allows for 360 degree rotation of the guard in a single action
  • Paddle switch with safety lock-off prevents accidental start up
  • Matching wheel flanges allow the use of common accessories
See more product details

Customer ratings by feature

Value for money
4.7 4.7
Versatility
4.6 4.6
Maneuverability
4.6 4.6
Comfort
4.6 4.6

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From the manufacturer

small angle grinder
1400 mwo
user protection
quick change release
dewalt

Product information

Technical Details

Additional Information

Warranty & Support

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DEWALT Angle Grinder Tool, 4-1/2-Inch, 11-Amp (DWE402K)

DEWALT Angle Grinder Tool, 4-1/2-Inch, 11-Amp (DWE402K)


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Product Description

The DWE402K 4-1/2-inch (115mm) Small Angle Hand Grinder Kit features three powerful systems for maximizing performance such as the Dust Ejection System for preventing damaging dust from entering the grinder tool, One-Touch Guard for 360-degree rotation, and Quick-Change Wheel Release for easy wheel removal.

Compare with similar items

This Item
DEWALT Angle Grinder Tool, 4-1/2-Inch, 11-Amp (DWE402K)
DEWALT Angle Grinder Tool, 4-1/2-Inch, 11-Amp (DWE402K)
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7.5Amp 4-1/2 Inch 12000 RPM Angle Grinder with 2 Guards, 3 Cutting Wheels, 3 Discs, Non-Slip Handle and Carbon Brush for Metal and Wood
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Price-27% $159.97
List:$219.00
-17% $89.99
List:$109.00
$44.99-24% $75.00
List:$99.00
$39.99
Delivery
Get it as soon as Friday, May 17
Get it May 16 - 20
Get it as soon as Thursday, May 16
Get it May 15 - 17
Get it as soon as Thursday, May 16
Customer Ratings
Ergonomic
4.6
4.5
4.4
4.4
4.7
4.0
Value for money
4.7
4.5
4.5
4.4
4.0
Maneuverability
4.6
4.6
4.5
4.5
4.0
Easy to use
4.8
4.5
4.5
4.0
Sold By
Whistler Products LLC
Kingsupplygoods
Amazon.com
Pana Supplies +
SHALL DIRECT
power source
Air Powered
Battery Powered
Air Powered
Corded Electric
Corded Electric
Corded Electric
max rotational speed
11000 rpm
9000 revolutions per second
11000 rpm
10000 rpm
12000 rpm
12000 rpm
wattage
850 watts
402 watts
900 watts
voltage
20 volts
120 volts
120 volts
120 volts
style
With Kit Box
Angled
Angled
Adjustable Side,Three-position Side
Angle Grinder Tool
Angled
weight
8.25 pounds
3.75 pounds
6 pounds
3.5 pounds
1 pounds

Customer reviews

4.8 out of 5 stars
4.8 out of 5
6,131 global ratings

Customers say

Customers like the lock mechanism, value, and versatility of the disc grinder tool. They mention that it has more safety features, and is reasonably priced. Some are happy with ease of use, power, and quality. Opinions are mixed on size and weight.

AI-generated from the text of customer reviews

520 customers mention506 positive14 negative

Customers are satisfied with the quality of the disc grinder tool. They mention that it performs well, works flawlessly, and is very powerful. Some say that it's a great grinder with plenty of power for any home DIYer. Overall, most are happy with the performance and versatility of the tool.

"...The power cord is tough but it's only 6ft long which in my mind seems a little short. My personal preference would be an 8ft or 10ft power cord...." Read more

"It rips. Fells like good quality. Performed to this point like good quality." Read more

"...worked flawlessly." Read more

"this is my 2nd one, the first one worked good for several years, good power, 11 amps verses some weak 4 and 7 amp ones, Some one borrowed it 6..." Read more

102 customers mention88 positive14 negative

Customers like the value of the disc grinder tool. For example, they mention it's a great item at a reasonable price, saving them time and money. That said, some complain about the packaging.

"...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...." Read more

"...The grinder is reasonably priced but what happened to the days when your tools came in a carrying case?" Read more

"...This is a pretty amazing tool for the price (often well under $100). Buy it even if you don't think you need it!..." Read more

"...multitasker will help you accomplish more in far less time - it’s worth every cent." Read more

80 customers mention64 positive16 negative

Customers find the disc grinder tool easy to use. They say it's simple to operate, and convenient. They also say it can tackle most any job with ease, and the paddle switch is easy to operate.

"...However, most of the set up and operation is common sense (at least I felt that way)...." Read more

"...It’s a solid tool, easy to control, and doesn’t feel cheap. One reader posted it was hard to use for small hands...." Read more

"...it, especially with the side handle and trigger lock, it's pretty easy to get used to.-..." Read more

"...different types of blades at the hardware store which makes it really convenient...." Read more

71 customers mention71 positive0 negative

Customers are satisfied with the power of the disc grinder. They mention that it has plenty of power at near constant RPMs, it never hesitates, and it powers through long sessions of serious work. The 11 amp version has guts and can take a good load. The motor keeps going and lasts a long time.

"...I am not sorry, plenty of power and not a hiccup during the whole project. Can't comment on longevity but my initial impression here is favorable." Read more

"...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...." Read more

"...The grinder appears solidly built; I expect it will last a long time. I am especially glad I got higher amp grinder for the Turbo-Plane...." Read more

"I really like the power that this grinder puts out! Lasts a long Time. only thing you will need haver 2 or 3 years is set brushes." Read more

54 customers mention50 positive4 negative

Customers like the versatility of the disc grinder tool. For example, they mention it's good for sanding, grinding, and cutting. Some say it has a lot of power to cut and that it helps them cut through steel without any issue. They also say it'll cut metal and concrete, and is perfect for sharpening lawn mower blades and garden tools.

"...It is light weight/power balanced and smooth, after a break in period...." Read more

"...I use it for alot of things, one of my favorite tools. Multiple attachments (not included)." Read more

"...and compared to the battery-powered Grinders, this one slices through with minimal issue!..." Read more

"...It’s so versatile that it can be used for grinding, cutting, polishing, or whatever you can do with a rapidly spinning wheel...." Read more

50 customers mention35 positive15 negative

Customers like the lock mechanism of the disc grinder. They say it has a convenient safety switch, and the safety guard latch can be rotated without a tool. They appreciate the lock feature, saying it's easier to actuate and does not pinch fingers. The grinder also has s spindle lock button and an over-ride lock, making it much safer.

"...There's also an over-ride lock so you don't have to continuously hold down the paddle switch when working on large areas at a time...." Read more

"...The lock is great. 11 amps is a LOT of power in a small tool. Handle is great. Balance is great. Bye bye milwaukee." Read more

"...Thus only one point to turn locking wheel vs 2" Read more

"...But knew one probably has tougher gear box.THis has more safety features. guard is rotatable...." Read more

57 customers mention31 positive26 negative

Customers have mixed opinions about the weight of the disc grinder. Some find it lightweight, while others say it's heavy and bulky. The handle is made of lightweight plastic and feels cheaply made.

"...The consumables can only handle so much. It is light weight/power balanced and smooth, after a break in period...." Read more

"...You won't be disappointed. It's a bit more bulky than a 4" grinder, and it also has a tremendous starting torque which tends to twist..." Read more

"Lightweight. A little more vibration than I like but I can deal with it" Read more

"I found it just a tad heavy but works really well on hard medals." Read more

36 customers mention15 positive21 negative

Customers are mixed about the size of the disc grinder tool. Some mention that it's small and compact, making it easy to use. However, others say that it is too big and too heavy for most. They also mention that the case is big enough for the grinder, but the motor barrel is a little large in diameter.

"...The power cord is tough but it's only 6ft long which in my mind seems a little short. My personal preference would be an 8ft or 10ft power cord...." Read more

"Fits well in tight places, easier to change out wheels" Read more

"...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...." Read more

"This is a great tool at a good value. Case is conveniently sized and has enough space to put an extra guard..." Read more

fed one hell of a hot supper on the first day
5 Stars
fed one hell of a hot supper on the first day
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 4x4 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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Top reviews from the United States

Reviewed in the United States on April 29, 2024
Style: Angle Grinder onlyVerified Purchase
La utilizo para carpinteria y es muy buena
Reviewed in the United States on July 22, 2020
Style: With Kit BoxVerified Purchase
I have a smaller 4in Makita angle grinder that I've used for years. And while it's mostly gotten the job done, it's become increasingly more difficult to find all of the 4in wheels and brushes that are available for the slightly larger 4-1/2 in grinders. Finally I decided to buy the Dewalt Angle Grinder Tool, 4-1/2-Inch, 11-Amp (DWE402K). This thing is a beast! Because this thing is such a powerful little machine (11 amps at 11,000 rpm), I strongly urge anyone buying this angle grinder to read all of the instructions, including ALL of the stuff about safety. Seriously - this is not a toy. This is a high-powered machine designed to do some really tough work. When turned on, it will almost jump out of your hands if you're not expecting the torque this thing has. I've come to buy numerous different wheels and brushes and this has been a pure joy to use. It is such a well-designed machine. The DWE402K comes with the basic DWE402 grinder, but includes a hard plastic case which I really like. While my new Dewalt grinder hasn't been in its case since I bought it, I like having cases for all my shop tools. When finished with a project and I'm cleaning up my shop, I like to clean up all of my tools and put them away in their respective cases together with any special tools or attachments. The dewalt comes with an allen wrench which I've never needed (stays in the case). And (sadly) there's not much spare room in the case for extra wheels or brushes. As for the grinder itself - I really like it for its design and ability to do real work. On some grinders, the guard is more of a pain because it's always in the way and can't be easily adjusted. So it's taken off and never put back on. That's shameful. Always use your guard, it's there to protect you. The guard on the Dewalt is genius. This guard is designed the way all guards should be. It can be easily rotated 360 degrees to any direction (read the instructions so you understand exactly how this works - and never try to adjust the guard without unplugging the grinder first) and the guard can be completely removed if ever needed. The 5/8in spindle is perfectly designed for quick changing wheels and brushes. The spin-on and off feature makes this a truly tool-less grinder. No special tools are needed to remove and replace wheels and brushes. Just twist them off an on with your hand. Again - unplug the grinder first - right?! The grinder also comes with a pair of 5/8in-to-7/8in "arbor" or a flat-washer-looking-thing for compressing wheels that don't spin-on to the spindle using threads, but rather have a larger clearance-hole, non-threaded diameter hole for mounting. It's a great system that requires no tools. The on-off control for the grinder is a simple paddle wheel with a built-in safety switch ... it's a breeze to use. Very comfortable. There's also an over-ride lock so you don't have to continuously hold down the paddle switch when working on large areas at a time. The power cord is tough but it's only 6ft long which in my mind seems a little short. My personal preference would be an 8ft or 10ft power cord. The only other improvement would be some sort of easy sky-hook to hang the grinder on the side of a bench or table. Bottom line, this Dewalt DWE402K Angle Grinder is the bomb! If you have serious work that needs to be done - this is the defacto standard in angle grinders. Seriously, this is one powerful and potentially dangerous beast of a tool in the wrong hands. For me - this is exactly what I was looking for! Be careful out there!
41 people found this helpful
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Reviewed in the United States on April 13, 2024
Style: Angle Grinder onlyVerified Purchase
So far no problem I would recommend
Reviewed in the United States on April 10, 2024
Style: Angle Grinder onlyVerified Purchase
It rips. Fells like good quality. Performed to this point like good quality.
One person found this helpful
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Reviewed in the United States on April 28, 2024
Style: Angle Grinder onlyVerified Purchase
I purchased the “open box” and it was new never used.
I worked this fairly hard over the last week or so. No issues no overheating.
Plenty of torque to grind through some sloppy welds and using as cutoff.
Variable speed would be nice to have for some more delicate areas (scotch brite type discs it’s a little to fast) but this is wide open all the time which is what is intended.
As others mentioned, Comes with a useless for itself Allen wrench. I have since ordered a spanner wrench. Otherwise trying to tighten the nut down is nearly impossible. I had one disc come loose using a plier to
Engage the nut to tighten prior to
Me getting wrench. fortunately it didn’t do any damage.
Not coming with the proper tool is dangerous and ridiculous on dewalt part.
I would have rated 5 star if came with spanner.
Reviewed in the United States on April 8, 2024
Style: Angle Grinder onlyVerified Purchase
Excelente
Reviewed in the United States on January 18, 2024
Style: Angle Grinder onlyVerified Purchase
I have had a few grinders like this before but all were well used when I purchased them. I am a woodworker and really do not have much use for a tool like this but I needed to resurface an entire 4 step concrete porch with 4" x 10" of parged block walls so I wanted a good tool for this job. I'm usually a Milwaukee or Bosch hand tool user as over my 50 year career these have proven their mettel. I saw this Dewalt, the pricing, Amazon's return policy and user reviews convinced me to give it a try. I am not sorry, plenty of power and not a hiccup during the whole project. Can't comment on longevity but my initial impression here is favorable.
Reviewed in the United States on March 21, 2024
Style: Angle Grinder onlyVerified Purchase
wire brushed 8 wrought iron chairs and 2 matching tables for painting. worked flawlessly.

Top reviews from other countries

Translate all reviews to English
GWANGMUK
5.0 out of 5 stars Good quality item
Reviewed in Canada on July 2, 2023
Style: Angle Grinder onlyVerified Purchase
It works powerfull.
Sean V
5.0 out of 5 stars Powerful
Reviewed in Canada on August 2, 2022
Style: GroundedVerified Purchase
I've had it now for a few months. Lots of cutting and wire cup work. I've hit the paddle switch a couple times accidentally but never hurt myself. Very powerful compared to my past experience with the dewalt 20V and $25 cheap wired ones. I recommend it.
Build 1988
5.0 out of 5 stars Grinder
Reviewed in Canada on November 15, 2020
Style: With No LockVerified Purchase
A good solid small grinder. A bit bigger than the last one which held up real well on the job.
Looking forward to lots of good service from this one as well.
Cliente de Amazon
5.0 out of 5 stars Su excelente desempeño
Reviewed in Mexico on March 17, 2019
Style: Angle Grinder onlyVerified Purchase
Muy buen producto, la calidad excelente, lo que no me gustó es que no trae estuche, me llegó en su caja de cartón
Saulo
5.0 out of 5 stars Excelente amoladora
Reviewed in Mexico on January 4, 2019
Style: With Kit BoxVerified Purchase
Sin duda la mejor amoladora que he tenido en mis manos... Buen tamaño, manejo rápido para manipular la guarda, cambio rápido de los discos con la llave Allen, gran potencia de trabajo con menor esfuerzo físico...Es la primera que tengo con estuche o caja para su transporte... La recomiendo ampliamente y al vendedor también... Llego rápido aun con los días festivos, la pedí el 25 de diciembre y me llegó el 2 de enero.
Customer image
Saulo
5.0 out of 5 stars Excelente amoladora
Reviewed in Mexico on January 4, 2019
Sin duda la mejor amoladora que he tenido en mis manos... Buen tamaño, manejo rápido para manipular la guarda, cambio rápido de los discos con la llave Allen, gran potencia de trabajo con menor esfuerzo físico...Es la primera que tengo con estuche o caja para su transporte... La recomiendo ampliamente y al vendedor también... Llego rápido aun con los días festivos, la pedí el 25 de diciembre y me llegó el 2 de enero.
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4 people found this helpful
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