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Dewalt DWS779 vs DWS780 – What’s the Difference ?

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If you are looking at getting a new miter saw and have narrowed down your search to the top two offerings from DeWalt then you might be wondering what exactly is the difference between the DWS779 and DWS780.

Well if you are in a hurry then the only difference between these two miter saws is the XPS system in the DWS780 that and the price.

The DWS779 uses a more traditional laser guide system, whereas the DWS780's XPS system shines a bright LED along the length of the blade casting a shadow that is perfectly inline with the blade. ​

Because of this XPS system in the DWS780 it can be upwards of 50% more expensive than the DWS779 depending on where you purchase it from. 

Is it worth it ?

No - Better to choose the cheaper DWS779 and buy your self something else like a good miter saw stand with the difference.​

Top Pick

DeWalt DWS779

Exact same saw as the DWS780 minus the XPS system at a much lower price.

15 Amp 12 inch double bevel sliding miter saw.​

Below we take a more detailed look at both miters saws and the XPS system too.​

DeWalt DWS779 vs DWS780​

As you'll see there really is nothing between the two saws with the exception of the XPS guide system.​

Both come with a 15 Amp motor that spins to 3600 RPM and have exactly the same cutting performance.​


DeWalt DWS779 Review

The DeWalt DWS779 is a 12 inch double bevel sliding compound miter saw. It is powered by a 15 Amp motor that can spin the 12 inch blade to a max no-load speed of 3800 RPM.

​It is capable of cutting up to 2x16 inch lumber at 90 degrees and 2x12 inch at a 45 degree angle.

The DWS779 is capable of miter cuts​ of 60 degrees to the right and 50 degrees to the left.

It has a bevel range of 49 degrees in both the left and right directions. There are positive bevel stops at 0, 22.5 degrees, 33.9 degrees, 45 degrees and 49 degrees. The bevel scale is over-sized which makes adjustments easy and accurate every time.

​Built from precision cut castings at 56 pounds the DWS779 is one sturdy machine especially if bolted correctly to your workbench. The miter detent plate is made from stainless steel so it is well capable of the constant abuse it may get on a busy job site.  

Who is the DWS779 for?
The 779 is best for a medium to ​heavy user that is looking for a real workhorse of a miter saw. It makes accurate cuts quick and easy straight out of the box with no real calibration required. 

For the money the DeWalt DWS779 is one of the best miter saws that is available on the market right now. Given the choice between an entry level model for $50 less from other manufacturers I would choose the 779 every time.​

Specifications

  • 15 amp motor
  • Max speed 3800 RPM
  • 12 inch double bevel 
  • 3 year limited warranty

DeWalt DWS780 Review

​The DeWalt DWS780 is a double bevel sliding compound miter saw. 

Just like the DWS779 the DWS780 is powered by a 15 Amp motor and has a no-load speed of 3800 RPM.

Similarly the DWS780 has positive stops at all of the most popular angles on both the miter and bevel adjustments. And like the DWS779 it does require a little bit of extra space behind it to allow for the full use of the fence.​

​The DWS780 has the same dust extraction system as the which is basically just a dust chute. There is a dust bag provided but you will see much better dust collection if you use a vacuum attached to the vacuum port same as any other power tool really.

In fact it is virtually the exact same machine as the DWS779 with one distinct difference; XPS system.

The XPS cross-cut alignment system from DeWalt works by shining a very bright LED light along the side of the blade. This bright light then casts a very clear cut shadow. The shadow is cast by the blade itself.

This has an added advantage over a laser guide system because the laser may move out of alignment over time. The shadow cast however will always be in line with the blade as it is produced by it.​ Just be aware that if you are using the saw outside on a bright day then the shadow will not be clear to the eye.

Specifications

  • 15 amp motor
  • Maximum speed 3800 RPM
  • XPS cross cut positioning system
  • Comes with carbide blade, wrench, dust bag and material clamp
  • 3 year limited warranty

​Which should you choose in the comparison of the Dewalt DWS779 and the DWS780 ?

Ultimately for most people the decision will come down to price. The DWS779 can be ​over $200 cheaper than the DWS780 depending on where you are purchasing from.

For the difference in price you can buy a heck of a lot of blades or buy yourself a decent miter saw stand.​

Is the DWS780 worth the extra 200 bucks? Well you are effectively paying that for the added XPS system. If such a thing is useful for you and the extra money is not too great a consideration then it is arguably the flagship model in the DeWalt range. However, the DWS779 is virtually the same machine minus the XPS and at a significant discount too.​

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