|Item Weight||19 pounds|
|Product Dimensions||5.8 x 21.4 x 12.4 inches|
|California residents||Click here for Proposition 65 warning|
|Item model number||DW840K|
|Item Package Quantity||1|
|Included Components||bare-tool; attachments; case|
|Warranty Description||90 Day Money Back Guarantee|
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DEWALT DW840K 7-Inch Angle Grinder with Bag and Wheels
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- 13.0 Amp AC/DC, 8,000 rpm motor provides high power and speed for 7-inch grinding applications
- High power-to-weight ratio for greater efficiency and reduced user fatigue
- Keyless adjustable guard provides tool-free guard adjustments, increasing productivity
- Rear handle design for greater comfort and control
- External brush caps for easy servicing; Sealed ball and roller bearings for extended motor life.Max Watts Out:2,250 W
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|Item Dimensions||5.75 x 21.44 x 12.38 in||10.13 x 24.25 x 5.06 in||6.75 x 21 x 8.25 in||15.63 x 5.94 x 4.81 in||21.5 x 8.88 x 4.38 in||24 x 7 x 8 in|
The DEWALT DW840K 7-Inch Angle Grinder with Bag and Wheels. This grinder features a 13.0 Amp AC/DC, 8,000 rpm motor which provides high power and speed for 7" grinding applications. It has a high power-to-weight ratio for greater efficiency and reduced user fatigue. The adjustable guard can be adjusted to redirect sparks away from user. Rear handle design for greater comfort and control, and external brush caps for easy servicing. The sealed ball and roller bearings allow for extended motor life. A spindle lock button allows for single-wrench bit changes. Includes (5) Grinding Wheels, Wrench, Backing Flange, Adjustable Guard, 2-Position Side Handle, Carrying bag.
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DEWALT D28402K 4-1/2-Inch Small-Angle Grinder Kit
Milwaukee 6088-30 7-Inch/9-Inch Large Angle Grinder with Lock-On
All 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.
From what I saw the tool looks great. The bag material is substantial and would serve its purpose well.
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.
I thought it would take a while, but with the right blade, it's really quick!
I bought the DEWALT DW4775 7-Inch Double Row Diamond Cup Grinding Wheel
and it was like a hot knife through butter. I would recommend to anyone. Not worth renting at this price!
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