When you’re in the market for a new miter saw, it’s pretty easy to get confused by their similarities. Two models that are often confused are the DWS779 and DWS780. Unfortunately, you cannot afford to waste money on the lesser of the two. 

Thus, in this review, our experts compare DWS779 vs DWS780 for you to know which of these two Dewalt miter saws is best for purchase.

DWS779 or DWS780?

Best Efficiency
Dewalt DWS780
Best for Price
Dewalt DWS779
Dewalt DWS780
Dewalt DWS779
This 15 amp motor product has an excellent guiding system in its XPS crosscut light technology. Apart from this XPS cross cut positioning system, it weighs nearly 20 pounds less than its counterpart.
In terms of pricing, the DWS779 with its 15 amp motor trumps its counterpart. It costs around a hundred dollars less, making it much more affordable.
Best Efficiency
Dewalt DWS780
Dewalt DWS780
This 15 amp motor product has an excellent guiding system in its XPS crosscut light technology. Apart from this XPS cross cut positioning system, it weighs nearly 20 pounds less than its counterpart.
Best for Price
Dewalt DWS779
Dewalt DWS779
In terms of pricing, the DWS779 with its 15 amp motor trumps its counterpart. It costs around a hundred dollars less, making it much more affordable.

Features of DWS779 and DWS780

Size and Weight

A power tool’s size influences how well you can maneuver the tool while cutting through various materials. On the other hand, the weight affects how long you can conveniently use your tool. Apart from the general tool size, you should also be careful to note the blade size.

Thankfully, there isn’t much of a difference regarding the blade sizes of DWS780 vs DWS779. They’re both twelve inches. Some other tools within the industry offer smaller or even larger blade sizes to suit different purposes. But, the DWS779 and DWS780’s 12 inches are just right to meet a wide variety of needs.

However, a major difference between these two comes in their weight. DWS779 weighs just around 70 pounds, which can be pretty heavy. It could become a burden while using it to work.

This puts the DWS779 at a disadvantage against the Dewalt DWS780. The latter only weighs about 56 pounds, which is about the same weight as a small bale of hay. While that isn’t exactly portable, other sliding miter saws can weigh as low as 28 pounds.

But, if we had to choose between carrying a 70-pound tool and a 56-pound one, we’ll likely choose the latter since it is simply more convenient.

DWS779 and DWS780: Cutting System

When you’re making your own miter saw woodworking projects, you want to be as accurate as possible. Unfortunately, you cannot exactly achieve the pinpoint accuracy you need by drawing a line on the wood with a pencil.

You will need a cutting system that is much more sophisticated. Before the XPS system with its LED light, companies started adding laser beams to their miter saws to deliver that level of sophistication.

One such company is Dewalt, and they delivered that laser guide system with the Dewalt DWS779. While it works fairly well, it is hard to deny the obvious drawbacks that lie with this cutting system compared to the XPS system with its LED light.

One of the major problems is that laser beams function much better at night, unlike an XPS system. If you’re using it in a very well-lit area, the Dewalt DWS779 laser beam will probably get lost in the surrounding (LED) light.

With all the noise and dust flying around, your senses could become too overwhelmed even properly to track the faint laser beam for accuracy. In the end, you might get roughly cut wood. Apart from this, the laser diode isn’t directly tied to the cutting blade. So, you might be off by as much as one-eighth of an inch when you cut.

Our experts found that none of these is much of an issue with the DWS780. This model uses a very bright XPS light/XPS system that casts a shadow while you cut. This cutline blade positioning system creates a contrast of dark versus light for an adjustment-free cut line.

In the battle of the Dewalt DWS779 vs DWS780 and their cutting systems, Dewalt DWS780 takes the lead with its XPS light/bright LED light.

Miter Detent Plate

A miter detent plate is a mechanical device on a miter saw. It is designed to lock a machine’s movement until the user releases it. The purpose of this locking is to ensure that you can make clean, high-quality cuts at accurate angles with no hassle.

The Dewalt DWS780 comes fully equipped in this area. It has a cam lock detent plate that is made of durable stainless steel. The miter saw also comes with a rail lock. It helps you to make vertical cuts properly.

The interesting thing about the product’s cam lock miter saw mechanism is that it has an easy-to-use button. This makes it significantly easier for you to adjust your angles whenever you need to do so.

The Dewalt DWS779, on the other hand, has a double horizontal rail. This mechanism boasts an excellent clamping system. The most impressive thing about it is its linear ball bearing. It makes the miter saw cut very accurately and efficiently.

Now, these two systems are wildly different from each other. However, their differences do not exactly make them inferior to the other. They work in different ways, but they still help to guarantee accurate angles while cutting. In this segment of DWS780 vs. DWS779, none trumps the other.

Cutting Capacity of DWS779 and DWS780

The cutting capacity of a miter saw is partly dependent on the size of its blades. For example, a 10-inch blade can spin very quickly because it is generally lighter and faster than its larger counterparts. But, it wouldn’t necessarily be able to match the capacity of larger blades. While it might be sharp, it would hardly get the job done.

12-inch blades are generally more capable than smaller counterparts. Their exclusive back fence design cuts through 2 x 16 inches dimensional lumber at 90 degrees left and right. Alongside the blade size, the teeth per inch (TPI) are also essential in measuring cutting capacity.

However, whether you’re looking at the blade size or the TPI, there is no difference between the Dewalt DWS779 and DWS780. They both have 12-inch blades and 60-point TPIs, which makes this segment another tie.

Safety and Security

We cannot overstate the importance of your safety while you’re using power tools like the Dewalt DWS779 and DWS780. Our team reiterates this because of the potential for major accidents to happen.

Luckily, neither of these ignore safety precautions or accident factors[1]. DWS779 and DWS780 can both be fastened properly to your sliding compound miter saw stand. That way, you’re at a much lower risk of hurting yourself while making smooth bevel cuts.

Also, both of the products come with blade guards. Blade guards are transparent plastic covers for the saw blade. As you can imagine, its primary function is to shield the rotating disk. You are supposed to keep the blade guard on whether you’re using it or not.

The guard helps to keep direct accidents from happening while cutting. But, beyond that, it also helps to keep particles from flying across the room.

The transparent design helps you to attain proper control over the cutting process. It also allows for comfortable visibility. Since these two products have the same safety mechanism, they tie here too.

DWS779 and DWS780 Power

The power of a 12-inch double bevel sliding compound miter saw is perhaps one of the most important things about the tool itself, according to our experts.

It is directly proportionate to the tool’s overall performance. The power of a 12-inch double bevel sliding compound miter saw is largely dependent on the engine’s components and capabilities.

 

On that note, DWS779 and DWS780 are pretty much the same in terms of power. They both have blades and motors that can rotate at an impressive speed of 3 800 RPM (revolutions per minute).

These motors are 15 amp motors. The power the 15 amp motors provide to the miter saws enables both of them to cut at practically the same level of effectiveness.

DWS779 and DWS780: Extra Features

In terms of design, our experts previously pointed out that the weight of the DWS780 miter saw and DWS779 are quite different from each other. However, in terms of general design, these two products’ manufacturers decided to go for uniformity.

Both tools are made out of aluminum and stainless steel. These materials help to ensure that the products are as durable as you need them to be. Apart from the functionality of the stainless steel miter, its aesthetics are largely the same. 

Generally, the areas of application on both tools are different. But, the same Dewalt yellow and black still surround both products. Finally, they both have useful carry handles which helps to ease the transportation from one location to another.

The power of a 12-inch double bevel sliding compound miter saw is perhaps one of the most important things about the tool itself, according to our experts. It is directly proportionate to the tool’s overall performance. The power of a 12-inch double bevel sliding compound miter saw is largely dependent on the engine’s components and capabilities.

On that note, DWS779 and DWS780 are pretty much the same in terms of power. They both have blades and motors that can rotate at an impressive speed of 3 800 RPM (revolutions per minute). These motors are 15 amp motors. The power the 15 amp motors provide to the miter saws enables both of them to cut at practically the same level of effectiveness.

Price and Warranty

Generally, miter saws aren’t exactly the cheapest things you can get on the market. They often come at a high cost. However, you can rest assured that the cost only exists because of the value of the work they’ll be doing.

In terms of price, DWS779 and the DWS780 are slightly different from each other. The former is a little less expensive. It costs a few hundred dollars less than the DWS780. If you are looking for a machine that functions fairly well on a budget, this is the way to go.

Beyond the pricing, however, they share similarities in their warranty. At no extra cost, Dewalt offers a 3-year limited warranty. Nevertheless, the price still puts DWS779 ahead of DWS780.

FAQ

Does the Dewalt dws779 have a laser?

The Dewalt DWS779 has a laser. It is a traditional laser guide system that assists with cutting by providing an accuracy guide. However, the laser isn’t the best for cutting accurately. It could be too faint to see in bright areas. It could also be a few centimeters off, leading to inaccurate cuts.

Overall Winner: Dewalt DWS780

In the beginning of our comparison of the DWS780 vs DWS779, our experts found that both products are very similar to each other. However, upon closer evaluation our team concluded that the DWS780 trumps DWS779, qualifying as our best miter saw.

The first reason is that it can do everything that the DWS779 can do but none of the similarities put DWS779 ahead of DWS780. The Dewalt DWS780 weighs significantly less than its counterpart and it has a much more efficient cutting system which boosts its overall performance to another level.

Robert