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DEWALT
DEWALT DW840K 7-Inch Angle Grinder with Bag and Wheels - DEWALT
DEWALT
DEWALT DWE46170 7-Inch Surface Grinding Dust Shroud - DEWALT
DEWALT
DEWALT DW4775 7-Inch Double Row Diamond Cup Grinding Wheel Blister - DEWALT
DEWALT
DEWALT D284932 Flange Set for Large Angle Grinder (Type 1 cutting wheels) - DEWALT

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DEWALT http://ecx.images-amazon.com/images/I/511HfsW0jDL._SL160_.jpg
DEWALT DW840K 7-Inch Angle Grinder with Bag and Wheels - DEWALT
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DEWALT https://images-na.ssl-images-amazon.com/images/I/41Mw3uHGWcL._SL160_.jpg
DEWALT DWE46170 7-Inch Surface Grinding Dust Shroud - DEWALT
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DEWALT https://images-na.ssl-images-amazon.com/images/I/51AHOj6xHBL._SL160_.jpg
DEWALT DW4775 7-Inch Double Row Diamond Cup Grinding Wheel Blister - DEWALT
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DEWALT https://images-na.ssl-images-amazon.com/images/I/41oyg9OEvjL._SL160_.jpg
DEWALT D284932 Flange Set for Large Angle Grinder (Type 1 cutting wheels) - DEWALT
Rating info
eComparisons Score
eComparisons ScoreThe "Comparison Score" Is calculated based on the average number of times this item was compared with other items in this category by our users
8.8
7.2
0
8.4
User Rating (Amazon)
User Rating (Amazon)

Five Star Reviews:

83%
You can never go wrong with the right tools. ...
September 4, 2017
You can never go wrong with the right tools. Dewalt is all that I buy and I never get let down.
Great product.
June 1, 2017
Very good and a solid made product. Recommend it.
Five Stars
April 23, 2017
Good stuff!!!!!!!
Great Medium Duty Grinder
November 28, 2015
This is a great medium to light duty angle grinder made by Dewalt. So far, it has held up to all that I have asked of it. We carry it around in our 'pump truck' to clean up the odd well casing from time to time. I've also used it briefly with a wire wheel to knock off excessive rust from metallic items just prior to painting.I also own a heavier duty Dewalt angle grinder and use it primarily for the heavier shop work.This is a good little grinder with enough hp. to tempt one into using it a bit too aggressively.
Power is good
November 17, 2014
I will readily admit I am not an expert on grinders. But I can not conceive of much more you could want from this type of tool. The simplicity is a strength in my opinion, as with the insane loads of torque this thing generates, lesser constructed tools would disintegrate. It has loads of power, is exceptionally sturdy, and holds up even when you loan it to a friend who uses it to cut apart something that would be better handled by explosives.
As good as a 9inch for pretty much anything, only lighter
March 7, 2012
In addition to this 13amp dewalt, I have these angle grinders:DEWALT D28402K 4-1/2-Inch Small-Angle Grinder KitMilwaukee 6088-30 7-Inch/9-Inch Large Angle Grinder with Lock-OnAll three are 5 star grinders, built to last and easily serviceable, metal gear casing, roller bearing construction, with screw off brush caps, and screw on side-handle.The 4-1/2 10amp dewalt is really nice to do tiny cuts in steel. Cutting rebar and galvanized pipe with it is a breeze. It's easy to take out because its very compact, you don't have to worry about it getting enough power on a 100' of cord, and it's easy to get into tight spaces and control. Also attachments for it are the cheapest.The 15amp milwaukee has the best shield guard. It is permanently affixed to the grinder with torx screws, but you can rotate it by depressing a clip, which is really nice. I use this one for grinding down concrete for sidewalk and foundation repairs. I've also used it to cut through 6" thick cast iron pipe to remove an old commercial boiler system. It is the largest and heaviest, and could cut a car in half. You can go deeper with 9" obviously, and I think the milwaukee must be geared down a bit to handle the extra circumference.This 13amp dewalt is a really nice mix between those two extremes. It is the more well rounded of the two tools and could probably do either tools job. If I kept only one this would be it. It's small enough that you could finagle it under a kitchen sink, but that is probably the smallest conceivable space you could grind in. And at the same time it can still grind concrete, cut through thick metal, and spin the heck out of a wire cup brush or sanding pad. The only thing is the shield guard is a bit chintzy, and is basically a compression fitting that you screw tight with a single screw, and to move it you have to break out your screwdriver. I keep a big screwdriver in the bag for that purpose. The bag it comes with is decent, thick reinforced nylon. The wheels it comes with are great, I just absolutely melted through steel bars like they were butter, molten sparks were flying, the bar was glowing red, and 2 seconds later I was done, so it was like sex. It feels like it has more torque than my milwaukee. My milwaukee is quite a bit older though, made in the US and I don't know it's history so it might not be a fair comparison.There are tons of attachments for angle grinders.. wood stock removal sanders, metal buffers, metal cutters, metal grinders, metal sanders, concrete grinders, undercut blades, and even chainsaw blades (called lancelot). I think cutting metal and grinding concrete is what they are built for. Be careful to match the RPM of the attachment to the tool, because some attachments aren't built for over 6,000 RPS, and its best to play it safe I think. Also using a saw blade on an angle grinder can produce dangerous kickback, especially on a powerful angle grinder like this one, even though they make attachments for it, I wouldn't recommend it.Dewalts are made in mexico, their corporate headquarters are in Baltimore Maryland.
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Four Star Reviews:

7%
Not bad, but made in China.
July 12, 2017
Hey, it's a run of the mill 7" grinder. Not much to say. But is heavy and kind of noisy. Made in China.
Great value, but doesn't meet my needs.
August 13, 2015
This appears to be a great tool for the purpose it is designed for, unfortunately it does not work with Type 1 blades, only type 27. The instructions that come with the tool specifically states that it should not be used with Type 1 blades and there is no attachment available for Type 1 blades. This wasn't clear to me in the on-line product description. I bought the tool to cut stone using a continuous rim diamond saw blade, but alas... I'm now returning it. Looks like I'll have to buy the large angle grinder. Too bad, it doesn't come with a bag.From what I saw the tool looks great. The bag material is substantial and would serve its purpose well.
Great grinder
May 4, 2015
.....great looking machine, quality, as is the case with the other Dewalt items I own. easy assembly and the storage bag is handy addition. This is really a "heavy duty" medium grinder I'd say from its size and heft. Should do the trick on some stubborn steel fence posts. Highly recommend for the money.
This seems like the best value
July 21, 2014
I've been using a 4" cutting wheel for flagstone. The 7" Grinder and blade is so much more powerful, the cuts are clean and go through the entire stone. I looked at many different brands, this seems like the best value.
Good grinder for the price
October 18, 2012
I'm posting this after only owning this tool for 1 day but it does appear to be a great value. Obviously I cannot comment on the longevity/reliability but again, for the price it seems great.I specifically got this 7" grinder rather than larger, more powerful, grinders as I'm not using this in an industrial/professional setting. I'm only stripping/grinding up to 3X3 square tubing that I welded up for furniture and the size is good for that.I held some larger grinders at the big box stores and they felt massive. This unit is a good compromise between the 12-15 pound "full size" 7" angle grinders and a small 4 1/2" grinder.PROS:PowerfulSmaller than most 7" grindersCame with a bag and 4 discs which seem to be high qualityCan be locked on using the button near the trigger which is easy to pushCONS:Can't adjust the guard without a tool (flat-head screwdriver or wrench)It wasn't freeOverall I'm very happy with it.
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Three Star Reviews:

4%
Nice feel good balance
August 13, 2017
Ok it is a dewalt grinder. Nice feel good balance, even bright yellow.Like how the trigger feels.Just one concern it is not varible speed..im a wood guy I use it for making faux beams.
Three Stars
July 21, 2017
Typical DeWalt tool doesn't last and no warranty center available
the bag is a good size and seems durable enough
October 19, 2016
The grinder seems to work really well, the bag is a good size and seems durable enough. The wheels it includes won't ever get much use since I use grinders for concrete and masonry work, so I'd rather save $30 and not have them included. It would work better is there was a D-handle mounted directly over the wheel location so you can put even pressure on the wheel. The side handle is fine for making cuts but it doesn't help with a cup wheel application.
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Two Star Reviews:

1%
s***
April 4, 2015
Would return if I hadn't thrown away the boxGrinding blades are crap
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One Star Reviews:

5%
Missing parts
May 11, 2016
I just got it today at 3:09 pm and is missing a part which is the side handle5/11/2016
Over heats super easy and leeks grease too
January 23, 2016
Only got to use a couple times. Over heats super easy and leeks grease too
cuts great, doesn't want to shut off
June 26, 2014
I just bought this grinder along with a compatible 7" masonry blade. It worked great for the first ten minutes. The 3rd, 4th, and 5th time I picked it up in the first half hour of owning it, the trigger got stuck. Used air to blow it out, tried again, and the trigger was still sticking. Its a bit to large of a tool to be looking for the cord to unplug it when the trigger doesn't shut off. And yes I work in the trades, I am well aware of what a trigger lock is. That was not the problem.
Caught on fire first use
May 31, 2014
The first time I used it, grinding steel, I smelled something funny, looked down and flames were coming from the brushes. I blew it out with compressed air, and it never ran again.My last dewalt tool.
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Pricing info
Old Price
Old Price
Price
Price
$130.88updated: Mar 19, 2020
from 6 sellers
$145.44updated: Mar 17, 2020
$39.72updated: Mar 17, 2020
$12.99updated: Mar 17, 2020
Features
Answered Questions
Answered Questions
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Article Number
Article Number
0028877543932
5272003745324
0028877588780
5448095659447
Binding
Binding
Tools & Home Improvement
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Brand
Brand
DEWALT
DEWALT
DEWALT
DEWALT
Color
Color
yellow
Yellow
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-
Currency
Currency
USD
USD
USD
USD
Department
Department
Tools, Auto & Industrial
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Formatted Price
Formatted Price
$242.08
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Height
Height
226.4 in
196.8 in
59.1 in
29.5 in
Label
Label
-
Dewalt
Dewalt
Dewalt
Length
Length
487.4 in
452.8 in
386.2 in
226.4 in
Manufacturer
Manufacturer
DEWALT
Dewalt
Dewalt
Dewalt
ManufacturerPartsWarrantyDescription
ManufacturerPartsWarrantyDescription
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Parts
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Model
Model
DW840K
DWE46170
DW4775
D284932
MPN
MPN
DW840K
DWE46170
DW4775
D284932
Number of Items
Number of Items
1
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-
Number of Parts
Number of Parts
DW840K
DWE46170
DW4775
D284932
Product Group
Product Group
Home Improvement
Home Improvement
Home Improvement
Home Improvement
Product Type
Product Type
TOOLS
TOOLS
TOOLS
TOOLS
Publisher
Publisher
DEWALT
Dewalt
Dewalt
Dewalt
Quantity
Quantity
1
1
1
1
Reviews
Reviews
-
Score
Score
9.4
7.2
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8.4
Size
Size
full size
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SKU
SKU
DW840K
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Studio
Studio
DEWALT
Dewalt
Dewalt
Dewalt
Title
Title
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DEWALT DWE46170 7-Inch Surface Grinding Dust Shroud
DEWALT DW4775 7-Inch Double Row Diamond Cup Grinding Wheel Blister
DEWALT D284932 Flange Set for Large Angle Grinder (Type 1 cutting wheels)
Warranty
Warranty
90 Day Money Back Guarantee
1 yr limited manuf warranty
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90-day money back, 1-year free service contract, 3-year limited warranty
Weight
Weight
67.0 oz
9.7 oz
0.1 oz
0.9 oz
Width
Width
844.1 in
364.2 in
346.8 in
113.0 in
Feature
Feature

13.0 Amp AC/DC, 8,000 rpm motor provides high power and speed for 7-inch grinding applications

3 Year Limited Warranty.

Keyless adjustable guard provides tool-free guard adjustments, increasing productivity

Rear handle design for greater comfort and control

Includes: Grinding Wheel, Wrench, Backing Flange, Clamp Nut, Adjustable guardm, 2 position side handle

Spring loaded; Hinged door; Provides a dust collection solution for both open area grinding and flush edge grinding

Universal Connector locks onto tool with a twist and click

Tool free clamp system is compatible with all DEWALT Large Angle Grinders

Aids in dust collection and containment, a Perform & Protect Dust Feature

Helps reduce user exposure to harmful Silica Dust

High Diamond concentration for long life and aggressive material removal

Large grinding segments with heat treated steel bodies

Arbor diameter 5/8 - 11"

Max RPM 8,600

Backing flange and clamp nut allow for use with Type 1 wheels

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