Model#: DEWNDWS780

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Brand new items;Full manufacturer warranty available
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New items with possible minor cosmetic damage; CPO 120 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Dewalt DWS780 12 in. Double Bevel Sliding Compound Miter Saw

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Product Overview


  • Integrated XPS cross cut positioning system provides adjustment free cut line indication for better accuracy and visibility
  • Powerful 15 Amp, 3,800 RPM motor delivers extended power and durability
  • Super efficient dust collection system captures over 75% of dust generated
  • Tall sliding fences support crown molding up to 7-1/2 in. nested and base molding up to 6-1/2 in. vertically against the fence while easily sliding out of the way
  • Exclusive back fence design cuts up to 2 in. x 16 in. dimensional lumber at 90 degrees and 2 in. x 12 in. at 45 degrees
  • Adjustable stainless steel miter detent plate with 10 positive stops improves productivity and ensures cutting accuracy
  • Miters 60 degrees to the right and 50 degrees to the left providing increased capacity
  • Oversized bevel scale makes bevel angle adjustments accurate and easy
  • Compact, lightweight design at 56 lbs. allows for easy transport and storage
  • Cam lock miter handle with detent override deliver quick and accurate miter angles
  • Dual horizontal steel rails with innovative clamping mechanism and linear ball bearings deliver an accurate, durable and compact saw
  • Innovative gearbox and belt-drive design increases vertical cutting capacity
  • Precise miter system and machined base fence support optimize durability and cutting accuracy
  • Light provides visible cut lines, making it easy to work effectively even in low-light areas
  • 12 in. Double Bevel Sliding Compound Miter Saw - DWS780
  • Carbide Blade
  • Blade Wrench
  • Dust Bag
Compliance and Restrictions
warning: This product can expose you to Lead, which is known to the State of California to cause Cancer and Birth Defect/Reproductive Harm. For more information go to


Series: Corded
Width: 23.75 in.
Height: 18.8 in.
Weight: 56 lbs.
Amperage: 15
Arbor Size: 5/8 in
Bevel Angle (Left): 48
Bevel Angle (Right): 48
Bevel Direction: Dual
Blade Diameter: 12 in
Bluetooth Compatibility: No
CSA Safety: No
Case Included: No
Cut Guidance System: Yes
Cutting Capacity (0 Miter/0 Bevel): 2 in x 14 in
Cutting Capacity (0 Miter/45 Bevel Left): 2 in x 12 in
Cutting Capacity (0 Miter/45 Bevel Right): 2 in x 12 in
Dust Collection Type: Dust Bag
ETL Safety: No
Keyless/keyed Blade Change: Keyed Change
Maximum Degree Miter Cuts - Left: 50
Maximum Degree Miter Cuts - Right: 60
Miter Angle (Left): 50
Miter Angle (Right): 60
Miter Type: Compound
Motor Type: Brushed
No-Load Speed (RPM): 3800
Positive Miter Detents: 10
Power Source: Electric - Corded
Slide System: Yes
UL Safety: Yes
Voltage: 120V
Wifi compatibility: No



4.7 / 5.0
138 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (74)
No, I would not recommend this to a friend (3)
Easy To Use (75)
Powerful (72)
Ergonomic Design (12)
Value (12)
Heavy (9)
Best Uses
Large Projects (17)
Frequent Use (12)
Heavy Duty Requirements (11)
Small Projects (11)
Great features!
Works well as a replacement for my radial arm saw. Only issue was when I secured the saw to the table, I discovered one mounting leg (the casting) was 1/4” taller than the other 3.
August 19, 2019
Originally posted at
Yes, I would recommend this to a friend
Easy To Use
Ergonomic Design
Best Uses
Frequent Use
Heavy Duty Requirements
Great saw
Excellent quality saw. Very accurate and easy to use Highly recommended
August 6, 2019
2 months ago
Describe Yourself:
Beginner- Casual Do-it-Yourselfer
Always accurate
I’ve been using this saw on job sites for almost 3 years now and it’s been accurate, powerful and never lets me down. The XPS light is my favorite feature, saves time on all cuts.
This review was collected as part of a promotion
June 28, 2019
Originally posted at
Yes, I would recommend this to a friend
Easy To Use
Ergonomic Design
Best Uses
Frequent Use
Heavy Duty Requirements
Large Projects
Small Projects
Home Repair
DeWalt got this RIGHT!
My 780 is just the addition my shop needed. The degree adjustment is spot on with no movement when set. Changing the blade to the DeWalt T80 took me 10 minutes. Ok, it's a little heavy but I want something that is built for what I have to throw at it. This tools feels right when running through beveled molding cuts or 4x4 posts. This powerful work horse will eat lumber and spit out dust. I also received the DeWalt folding mobile heavy duty work station for free with my purchase... THANK YOU DEWALT and CPO!
June 2, 2019
Describe Yourself:
Avid Do-it-Yourselfer
Exactly as I expected
Brought the saw a month ago to replace a 30+ year old mitre saw. Was perfect for my use!
May 25, 2019
Originally posted at
Best saw own.
I bought this saw last year, to replace my old Chop saw, it worked fantastic. Used it to help build my deck. This year I moved to a new house, I now have a shop, so I bought a dust collection system to keep the sawdust down. Seem to be having a problem finding an adaptor to connect to the back of the saw. I have the DWS780, I just need something to go to a larger size, but nobody seems to have anything.

Other than that I have no problems with this saw.
May 17, 2019
Originally posted at
Yes, I would recommend this to a friend
Easy To Use
Ergonomic Design
Best Uses
Frequent Use
Heavy Duty Requirements
Large Projects
Small Projects
Home Repair
The best
The only miter saws I buy are Dewalt. Finish carpenter and cabinet maker for 29 years.
May 10, 2019
6 months ago
Describe Yourself:
Great saw
I bought this about a year ago, it is quality all around. This saw is accurate and makes precise cuts every time. It is easy to use and is a bit on the heavy side but it does the work with ease. I highly recommend this saw.
May 5, 2019
Originally posted at
i love the light
i up graded from the standard compound saw 5 months ago to this one and it has been worth the money very glad i did . I built a new garage and have used the heck out of it
March 12, 2019
Originally posted at
I'm a huge Dewalt fan and most all my power tools are Dewalt. Purchased the 12" to replace other older miter saw, was really looking forward to this saw for some time. The saw had a few adjustment needed, it did cut square after that but reason I returned the saw was the slider has too much resistance , have to really push to finish the cuts.
I thought I might have a defected saw, but tried another new one out and its the same. Now I'm in the market for another high end saw
February 13, 2019
Originally posted at

Questions & Answers

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Browse 30 questions Browse 30 questions and 37 answers
if you buy this produduct they give you free the heavy-duty miter saw stand?
jorge f on Jan 6, 2017
BEST ANSWER: Yes, sometimes. It depends on if they are offering the stand as a free special or not. It will say on the page for the saw if the stand is being offered. The free stand does not automatically come with the saw.
Does it have the laser line ?
A shopper on Jan 10, 2017
BEST ANSWER: It uses a light which brightens the cutting deck and casts a strong, thin shadow for a cut line. I like the feature.
I am considering purchasing a 12" Dewalt mitre saw, MODEL (#DEWNDWS780). Could you tell me what "DEWN" that precedes "DWS780" stands for? "Thank You"
Scott on Jun 12, 2016
BEST ANSWER: DEWN........Is the prefix for Dewalt.The N means the item is NEW.
Hola tienen de 220v ????
Pepegonzalez1 on Apr 1, 2016
BEST ANSWER: No. 120 VAC/60 Hz only.
Are you offering this saw with the free heavy duty stand with purchase still?
N on May 2, 2015
BEST ANSWER: We are not currently offering the free stand with miter saw purchase promotion.
Can the depth of the cut be adjusted to stop and stay at that depth of cut. I want to be able to make a mortise. The older model of this saw was able to do this, will the dws780 also be able to do the same?
If it will, thats the saw for me.
Michael on Jan 16, 2015
BEST ANSWER: Yes, this item may be adjusted to stay at a level cut.
Does this saw come with the feet that quick release mount to the stand?
A shopper on May 25, 2019
are there table extensions for this saw?
mirado on Jul 7, 2017
BEST ANSWER: Yes. Easy to use extensions
I have had the 12" model for 8 years & love it. I have built a new shop with a dust collection unit- is there an adapter for the oval dust port to a circular hose?
jim t on Jan 10, 2017
BEST ANSWER: Yes it is only oval shaped by the blade and has a normal vacuum port on the back.
Looking for case for Dewalt sliding compound mighter saw.
Contractor on Dec 21, 2015
BEST ANSWER: Please contact the manufacturer direct at 1-800-433-9258 for replacement parts.

New Vs. Reconditioned

What's the difference between New and Factory-Reconditioned?

Factory-Reconditioned products have been returned to the manufacturer and are restored to like-new operating condition; they go through a rigorous testing and inspection process. Plus, they offer a significant savings vs. new.
  • Reconditioned products may have minor cosmetic blemishes or scratches that do not affect item performance.
  • Reconditioned products may not come with all of the consumables the new version comes with (bits, sanding pads/papers, cases, etc.).
  • Both come with a manufacturer warranty and are covered by our Money Back Guarantee; New is 30 days, Reconditioned is 120 days.
Condition: New Factory Reconditioned
Features: Same Same
Specs: Same Same
Includes: 12 in. Double Bevel Sliding Compound Miter Saw - DWS780,
Carbide Blade,
Blade Wrench,
Dust Bag
12 in. Double Bevel Sliding Compound Miter Saw - DWS780R,
Blade Wrench,
Dust Bag
Availability: In Stock In Stock
Warranty: 3 Year 1 Year


Most DEWALT® Tools purchased on or after January 1, 2004 come with a warranty package that includes:

Three-Year Limited Warranty. DEWALT will repair, without charge, any defects due to faulty materials or workmanship for three years from the date of purchase. This warranty does not cover part failure due to normal wear or tool abuse. For further detail of warranty coverage and warranty repair information, visit or call 1-800-4-DEWALT (1-800-433-9258). This warranty does not apply to accessories or damage caused where repairs have been made or attempted by others. This warranty gives you specific legal rights and you may have other rights which vary in certain states or provinces.

One-Year Free Service Contract. DEWALT will maintain the tool and replace worn parts caused by normal use, for free, any time during the first year after purchase.

90-Day Money Back Guarantee. If you are not completely satisfied with the performance of your DEWALT Power Tool, Laser, or Nailer for any reason, you can return it within 90 days from the date of purchase with a receipt for a full refund - no questions asked.