DEWALT DWS780 12-Inch Sliding Compound Miter Saw

Editor rating

4/5 on Mar 29, 2015

User's rating

229 reviews


  • Back Fence design excusive to this miter saw cuts at 900 and 450 angles
  • New and exclusive crosscut adjustment-free laser cut line indication
  • Out of the way power cord
  • Powerful and durable 15amp motor with a speed of 3,800 rpm
  • Stainless steel detent plate with adjustable 10 positive stops for accuracy and productivity
  • Ultra-efficient dust collection system seizes over 75% of workspace dust
  • Three-year limited warranty, one-year free service, 90-day money-back guarantee


• Heavy
• Sliding fence tends to distract the bevel cuts


Grit, ruggedness and precision are what characterize the DEWALT DWS780 12-inch double bevel sliding compound miter saw. Built for the rigors of rough and tough construction applications, this tool will come in handy for contractors, professional carpenters, installers and framers alike.

Recalibration-free LED Laser Cut Line Indication

The DWS780 miter saw features an advanced XPS crosscut system with a super-bright LED laser light that shines on the work piece to show you the exact line along which the blade will cut the material. This new alignment features does not need to be readjusted even after you change blades. The result? Accurate, convenient cutting without the fuss of recalibration as is the case with traditional, regular laser guides.

Durable and solid construction

Built to endure the tough conditions of a construction or workshop site, the DWS780 miter saw features precision castings, sturdy guards, a bevel system and fences. The miter detent plate is built from strong stainless steel to endure the roughness of the job site.

Powered to cut with ease

There is no doubt that the DWS780 is built to undertake the toughest of cutting applications. The saw is powered by a robust 15-amp motor at a speed of up to 3,800 RPM. The power cord is diverted through the back rail to keep it from interfering with the slide. The saw comes with a rail lock to keep the head from the fence, thereby making it easier to cut the work piece at a vertical angle. This incredibly versatile tool allows you to make cuts at different depths and angles including a back fence capacity that is exclusive to this saw and cuts at a depth of 2’’x16’’ at an angle of 900, 2’’x12’’ at an angle of 450. Other possible cutting capacities include 7-1/2’’ for a nested crown, 6-3/4’’ vertically and 13-7/8’’ horizontally.

User-friendly with ultimate flexibility  

The DWS780 miter saw features an easy to read dual bevel system, which makes angle adjustment a breeze. The bevel can be adjusted to different angles ranging from 0 to 49o with positive stops at O0.Other possible angles include 22.5o, 33.9o, 45o, and 49o to the right and to the left. It is also possible to adjust the saw to make right side miter cuts of 60o and 500 to the left. The adjustable miter detent plate comes with 10 positive stops. With the miter lock button, you can keep angles locked between detents while the miter detent override enables accurate adjustment of angles.

The DWS780 miter saw is impressively versatile, solid, safe and easy to use. Homeowners and DIY hobbyists will especially find the XPS cross cut positioning system very helpful as it provides an unmatched level of cutting accuracy.

Before you buy, take a look at this comparison of DWS780 vs DWS779