Fine Tune Your Miter Saw | Dewalt 779 Miter & Bevel Adjustment

A miter saw is used for a precise cut, but how do you know if your cut is accurate?
In this episode I review how to adjust the Dewalt 779 for both Miter Cuts & Bevel Cuts. It super easy, should take less than an hour, and shouldn’t need to be touched again.
Overall Steps to Adjust
Check Table, Fence, & Blade
- Unplug your saw
- Check to ensure your table and fence are both flat with a carpenters square
- Rotate your blade to ensure it’s not bent or out of shape
Miter Cut
- Set the saw to a 90 degree bevel cut (straight up and down)
- Using your carpenters square against the fence, ensure the blade has no gaps along its length
- Check the other side as well
- If adjustments need to be made
- Loosen the face plates of the angle guide
- Tap it until the square is flush
- Tighten the face plate
Bevel Cut
- Rotate the blade to either + or - 45 degrees
- Using a Digital gauge or a machinist square, check that it’s at 45
- If not correct, adjust the appropriate fastener on the back of the saw
- Repeat for other 45 degree cut
- Bring saw to 90 degrees and measure with digital gauge or machinist square
- If not correct, adjust with the appropriate fastener in the back of the saw
It sounds complicated but when you see the mechanism, it’s very simple. If you have any confusion, watch the video.
Thanks as always, be safe, and happy woodworking!
Josh
Northwest Craftsman
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Products Used*
Dewalt DWS779 Miter Saw: amzn.to/2HzlELw
Carpenters Square: amzn.to/31Rn2Qp
Digital Angle Gauge: amzn.to/3nyFO8M
Speed Square: amzn.to/3eGh6iW
Machinist Square: amzn.to/2HKtfXm
Support:
Website: NorthwestCraftsman.com
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My Tools: www.amazon.com...
Connect
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Facebook: / northwestcraftsman
Email: See contact section
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Audio Credits:
Room for Two by Dan Lebowitz (Licensed by KZbin Audio Library)
More Audio from Soundstripe**:
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**Link above is an affiliate link which provides you a discount of 20% on your first purchase and Northwest Craftsman a rebate on our subscription.

[@isitbowseason]

Thanks. I’ve been so fed up with mine for a while. I can use it how it’s intended now 👍🏻

[@NorthwestCraftsman]

Glad I could help!

[@ryantaylor5297]

Man this was great, thank you. I have ADHD and a lot of these tutorials were long and drawn out. This was great for a beginner.

[@NorthwestCraftsman]

So glad you found it helpful! Have fun making some sawdust!

[@woofwoof-w4g]

My husband was going to cut some boards for a closet I am designing, but I checked his blade at 90 degrees per another guy's video with his speed square and it was off. He said he didn't know how to fix it, so I straightened it using that bolt per your video while he was taking a nap.

[@NorthwestCraftsman]

Glad you were able to get it fixed! 😄

[@markmcelroy8489]

Thank you so much for this video. I got this exact saw for Christmas and am just about ready to set it up. This will be invaluable!

[@NorthwestCraftsman]

Thanks Mark! I'm glad you found it helpful!

[@iefpro01]

Thank you. LOL, been using my saw for years now and the alignment has been getting worse and worse. This just saved my saw! THANK YOU!

[@NorthwestCraftsman]

Haha, I hate it when my tools walk out of true 😂 glad you found this useful though! Happy woodworking! Josh Northwest Craftsman

[@rustydegeorge5726]

I have this exact saw and can’t wait to check it’s accuracy using your tips… thanks for this informative video!

[@HyperCazual]

Just got this saw and got tired of reading the instructions and hunting for numbered dots. Thanks - Subbed.

[@NorthwestCraftsman]

Glad I could help! Happy woodworking, Josh Northwest Craftsman

[@engineer3112]

I was really surprised how much cutting power (and torque) this saw had out of the box. I've used other (10" saws) previously and was pretty surprised with the speed and cutting ability of this Dewalt saw.I have bolted mine to a table to minimize movement which I highly recommend.This is a Great saw kzbin.infoUgkxPeGkHOMe05FySypTOvYumxMn-xi39oRe with a light to see your cutting line (not a laser line).I'd recommend this saw fro anyone looking to upgrade from a 10" miter saw.

[@NorthwestCraftsman]

Couldn’t agree more.

[@AlienLeader4]

Thanks for the content. I am setting up my saw and this was more helpful than the manual.👽

[@NorthwestCraftsman]

So glad you found it helpful!

[@Vexxin73]

This is one of the best videos I have seen, Clear simple information! Thank you so much for doing these kind of videos.

[@NorthwestCraftsman]

Thanks! I’m glad you found it useful!

[@brewster102]

Best video I have found on KZbin for all of this adjustments--thanks

[@NorthwestCraftsman]

Thanks! I really appreciate that! Glad you liked it!

[@brewster102]

@@NorthwestCraftsman I just got this model from Home Depot and I have the 90 true to the fence (on both sides), and the right side 45 to the fence. But the left side 45 is slightly off, maybe .3 to .5 greater than 45. The table and the fence both are flat all the way across. Could the adjustable detent miter scale be faulty? Any suggestions?

[@NorthwestCraftsman]

Hey there! Glad to hear it’s mostly in line. I see a few possible options: 1. There is a small amount of tolerance stack up in the detent plate. i.e. the very small amount of play all components will have allows the right to hit 45 on the dot, but it’s too close to the edge on the left and pulls it off by a hair. 2. The fence on the left is off (less likely because of the 90° measurement being on) 3. It was measured poorly (I’m guilty of this more often than I care to admit 😂) 4. You’re limited by the accuracy of your measurement To make sure it’s not 3, which is easy to check, try measuring it a couple of times and see why kind of repeatability it has. To check 4, how are you measuring the angle? If those look fine at it does seem to be in the detent plate, there are two possible actions I see. 1. Ignore it and only is the right side. I rarely use the left 45. 2. Split the difference between the two and reduce your error to about 0.1° on both sides, or, only use the one side. Problem with this is that it’ll shift all your measurements. In that direction and you’ll want to double check them to make sure they’re not too far off.

[@Scr8pnOnU94]

I appreciate this video! Saved me time reading the owners manual. 🤘

[@NorthwestCraftsman]

Glad I could help!

[@surfinturfer]

Make more videos, man. You have a really good style that is easy to understand and to the point. {Subscribed}

[@NorthwestCraftsman]

Thanks for the positive feedback! Again, glad to have you as a part of the community. Josh Northwest Craftsman

[@curtislv426]

You deserve an award for a very thorough explanation and well edited instructional video, kind sir. Have you noticed that the blade guard's wheels are problematic when doing bevel cuts? Mine can't roll along the the work piece like it should because of the aggressive angle and I had to remove my blade guard entirely. Thanks!

[@NorthwestCraftsman]

Thank you! I appreciate the compliment and am glad you found it helpful. I have noticed that the wheel binds up on bevel cuts sometimes. What seems to help me is when I use my thumb on the trigger hand to slightly lift the guard as I initiate the cut. I don't do a ton of aggressive bevels though so I may not be experiencing the same situation you are. Josh Northwest Craftsman

[@curtislv426]

@@NorthwestCraftsman thanks a lot my friend! Are your wheels binding up on the 45° bevel cuts though? Mine are and I think that's a design flaw in this saw.

[@NorthwestCraftsman]

Yea, I guess that is where I’ve noticed it. I’ll need to try cutting a few of those to see what the motion feels like. I don’t even do that many 45° bevels 😂 miters yes, but apparently I’m a bevel free woodworker 😂 On the whole though, I think you’re right that this is one of the weak points of the design.

[@rustydegeorge5726]

I have this exact saw and can’t wait to use your video to check it’s accuracy…thanks for this informative video!!

[@NorthwestCraftsman]

Not a problem! Glad you found it useful!

[@negotiator96]

Very cool video!👍👍... Just remember... ✴️✴️✴️ That when you are checking the bevel angle with a digital angle finder, don't forget to rotate the blade a quarter or a half turn when taking a reading; so that your measuring device will be at a different spot on the blade so that you can get multiple readings from the blade surface; which will help eliminate possible defects in the blade itself(eg:a bent or warped blade) from throwing off your measurement by a decimal or two. 👍 ✴️✴️Also✴️✴️ When checking for the bevel angle with a digital angle finder remember to put the magnetic meter on the bottom side of the blade as well as the top side of the blade to check the measurement and see if there is any difference due to the weight of the magnetic calibration device, when on the top side of the blade... (Not as important though, depending on the size and weight of your digital angle finder device...) Peace!!!😁

[@NorthwestCraftsman]

Thanks for the advice! Great tips!

[@petec6690]

Good points. As a "Quality Engineer" and having been a "Quality Technician" I've long known the reasons for taking multiple measurements. Thanks for highlighting it in the comment section. Since I didn't cover that your comment will be useful to many others.

[@Cut2Finish]

You've saved me a lot of time today. Thanks for the video!

[@NorthwestCraftsman]

Glad I could help! Happy Woodworking! Josh Northwest Craftsman

[@markreinsager4047]

Excellent video. Really appreciate the insight.

[@NorthwestCraftsman]

Glad you found it helpful!

[@petec6690]

Bet you haven't heard this before: My new (out of the box) DeWalt DWS779 does not track straight. No, not a fence alignment issue, the back side of the blade tracks just left of the leading edge. That means it's crabbing through the cut. After the blade has made its initial cut the back side of the blade comes along and nibbles just a little more out, leaving an ugly joint. I just unboxed this and the first thing I intended to do was to make sure everything was properly aligned. Though it looked like a good 90˚ cut, after cutting a test piece - it's obviously crabbing to the left slightly. Using feeler gauges, the 0.018" gauge seems to feel like it strikes the edge whereas the 0.017" gauge slides in without contact. This measurement was taken with the piece held edge down to the surface of my cabinet saw. On the flat. No joints, just flat.

[@NorthwestCraftsman]

Dang! No kidding, I haven't heard of that before. It strikes me as a bearing/rail assembly issue for the slide which causes it not to track in the plane of the saw. I'd absolutely reach out to Dewalt for a replacement.

[@petec6690]

@@NorthwestCraftsman Imagine two poles sliding parallel to each other. At one end you have an end-stop and at the other you have - um - a saw assembly. As long as the end-stop and the saw assembly are perpendicular to the poles and parallel to each other, the saw will not crab. Here's what I did: I loosened the mounts enough that I could influence them gently but firmly with a hammer, causing one pole to shift back slightly. The first result showed promise but I had to repeat the process a few times. One time too much and the saw was now crabbing the other way. Ever so gentle taps with the hammer caused it to spring back to its factory position and I had to start over. Once I got it just slightly too far I tightened things down a bit, then with ever so slight taps I coaxed it back into alignment. The saw blade now has barely any aberration of crabbing. I now know that if I want to repeat the adjusting cycle again - I know how. For certain it was never intended to be a user adjustable feature, but if necessity is the mother of invention then mother-in-law is the invention of necessity. And adjusting that was definitely a mother-in-law of a bikch. Yeah, I know I mis-spelled that.

[@NorthwestCraftsman]

I can visualize exactly what you’re saying and that would explain the issue perfectly. Glad you were able to get it fixed!

[@danielserrato7907]

Just adjust my saw on site! Great video thank you man!!!

[@NorthwestCraftsman]

Glad it helped! 😄

[@johncammarata7064]

Great video! The saw seems great, but the manual is lacking. This helps a lot! Thanks!

[@NorthwestCraftsman]

Thanks for the feedback! Glad you found it useful!

[@johngiacoppo1296]

Awsome detailed video THANK YOU!

[@NorthwestCraftsman]

Glad you found it helpful!

[@georgejohnson2736]

thank you very much! helped me slit for this new saw. and I will get a digital magnet level!!

[@NorthwestCraftsman]

Glad I could help! And those things are incredible!

[@wk845]

Well done, both content and technical quality

[@NorthwestCraftsman]

Thanks William! I’m glad you found this useful!

[@JennieClagettGray]

I needed this exact video!! Thank you!

[@NorthwestCraftsman]

Of course! Glad it was helpful! 😄 Happy Woodworking! Josh Northwest Craftsman

[@jeremycourrault5694]

Thank you from France

[@NorthwestCraftsman]

Glad you found it helpful Jeremy! Fun to see viewers from all over the world 😊 thanks for stopping by!

[@salvadorgarcia1741]

Very helpful video

[@NorthwestCraftsman]

Glad you found it helpful!

[@surfinturfer]

This is a great video -- all business, no fluff, and you have a really straightforward delivery style -- but at 1:38, talking about the fence alignment, it would be helpful to know how make adjustments to the fence to be sure it is true instead of "get them fixed" as an answer. Appreciate the title says "Miter & Bevel Adjustment", but your box level can be spot on and if the wood is not consistently flush against the fence, it doesn't matter, eh? Just a thought, brother.

[@NorthwestCraftsman]

First, thank you for the feedback! I’m glad this style works well for you. Second, you’re totally right, I was more vague than I ought to have been. If the base of your miter saw is out of plane/true, it’ll likely need to be remachined. For me, that functionally means returning it to Dewalt. For your last point, can you elaborate a little more? I’m not sure I fully understand what you mean.

[@surfinturfer]

@@NorthwestCraftsman Hey, man. Agreed, if the base is out of line, that's probably a machining/manufacture thing. My focus was on adjusting the fence if the two parts (left side, right side) are not on the same plane. Best~

[@NorthwestCraftsman]

Gotcha! I’ll have to go check to see if those are adjustable. Can’t remember. Your feedback is totally valid though, I should be more specific than “then you’ll need to fix this” 😂 Glad to have you around! Thanks for watching the videos with a critical eye. Josh Northwest Craftsman

[@paulyoull5472]

Thank you for a very informative video

[@NorthwestCraftsman]

Glad I could help Paul!

[@photopete16]

Thank you. So much better than trying to follow the instruction manual. Quick question, I am new to a lot of this..that digital angle guide you used looks very useful. Does it require that the surface the saw is on is perfectly level?

[@NorthwestCraftsman]

Glad you found it helpful! And that’s a great question! You don’t need a perfectly level surface for the digital angle gauge. When I “zero it out” on that surface. I’m setting that as the reference. So the next place I set it will be the angle of that surface with respect to the reference surface we zeroed the gauge on.

[@photopete16]

@@NorthwestCraftsman thanks so much for the reply. This makes total sense. It's similar to using the tare function on a scale.

[@anthonymoraes3251]

Good stuff! Thank you…

[@NorthwestCraftsman]

Glad you found it helpful!

[@Alex_science]

Nice tips. I have a question. There is a great number of digital angle meters. What brand is the most accurate and reliable? Tks!

[@NorthwestCraftsman]

Hey Alex! Complicated question. The real question is how much are you willing to spend and how much does it matter for your work. Most are only accurate to .1 degrees which is usually ample. I have the Wixie gauge which has worked well but Klein also has one and I'd trust them. I have the links below. Wixie Gauge: amzn.to/3WSPX16 Klein Gauge: amzn.to/3Gn6aEx

[@Alex_science]

@@NorthwestCraftsman Thank you very much! It is being hard to match price x accuracy. I really appreciate your answer. Tks!

[@NorthwestCraftsman]

Not a problem! Glad I could help and it’s always a question 😂

[@carterscustomrods]

Awesome video!!!!! Thanks you!!!

[@NorthwestCraftsman]

Not a problem! Glad you found it helpful!

[@jpcreativeimagery]

This was very helpful. So, what would cause the miter angle to be way off when doing taller vertical miters? I had some shiplap that I wanted to miter on the long side for having two pieces laying against the wall meet in a 45 and the miter angle was off by several degrees on the downward cut height of the board. The saw would follow my line at the top and then be out by the time it hit the bottom of the board. I checked the bevel angle and the saw was perfect and it's 90's are solid. Are taller miters just not ideal / not accurate? Should I have laid it flat on the cut table instead? I couldn't do that because my dewalt 12in model isn't dual bevel unfortunately.

[@NorthwestCraftsman]

Glad this was helpful! And it took me getting through your comment to that last portion for it to click why you weren't using the bevel function. That being said because of the articulation of the saw, you can really compound your error if it's just slightly off. There are a few troubleshooting steps I'd do before going to a crosscut sled, if you're interested, let me know and I'll get it together.

[@PabloMartinez-oq1cy]

Thank you! Blessings in Christ.

[@TheJattymay]

GREAT VIDEO!!!! Quick question. After a bunch of moving around and cleaning up, I was setting the saw up for my wife, and I noticed that the locking mechanism at the front of the saw that auto stops the angles of the base plate is not grabbing. Do you know of an adjustment? Thanks again!!! Matt

[@NorthwestCraftsman]

Hey Matt! Glad you liked the video! That’s odd, I’ve never run into that. Only thing I can think of is that some piece of wood jammed into the spring mechanism which is keeping it from popping down. Does it feel like there is any grab?

[@TheJattymay]

@NorthwestCraftsman As I can see, the "tab" is hardly popping in. I will check for some debris in the spring. Thanks for the reply.

[@agustinherrera5600]

So to adjust the left side bevel you use the screw on the right side and to adjust the right bevel you use the screw on the left side ?

[@NorthwestCraftsman]

Depends on how you’re referring to left and right bevels but yes, those screws are the hard stops for your bevels

[@ahmadawa9021]

That is not a 90 degree detent nut. I've practically turned it both ways and when I tighten it, it shows the degrees going down on my digital angle gauge but when I loosen it the degree doesn't go up. You should have shown how to do this.

[@ahmadawa9021]

I turned that nut for the 90 degree bevel didn't do anything. Maybe a demonstration of that would've been nice....

[@ryananthony4840]

Thanks!

[@NorthwestCraftsman]

Of course! Glad you found it useful!

[@kevinb6102]

Good info. Thx

[@NorthwestCraftsman]

Not a problem! Glad you found it useful!

[@tomsopp1546]

Have you seen a cut that does this? When I cut a 45 with the saw to the right. The cut pulls in towards the right side closer to the fence

[@NorthwestCraftsman]

Hey Tom! Thanks for the question. Let me make sure I’m understanding correctly. When the saw’s miter cut angle is at 45° (cut is still vertical) it create a bevel cut (no longer a vertical cut)? If you have any photos or a video explaining what you mean, you can find the channel’s email on the about tab of the channel in KZbin.

[@BLAM777]

How do you get the side to side wobble to stop. It's not the blade the whole saw moves/ wobbles side to side. Can't see any screws or adjustments under the base?

[@NorthwestCraftsman]

Interesting! Like it’s wobbling in the bevel adjustment direction? If so, the back of the saw has the pin which locks in the bevel, does that have any wiggle in it?

[@BLAM777]

@@NorthwestCraftsman yes the bevel adjustment. The yellow pin is a little loose and the back black know is tight. I'm stumped. I see no way to tighten it.

[@NorthwestCraftsman]

@@BLAM777 Weird. Okay, well, it's narrowed down to that. Can you try pulling it out like you're going to do a bevel cut and then let it snap back into the 90deg hold position? When it's doing this see if it feels like it's inserting fully or if there is something in the way, keeping it from fully engaging.

[@BLAM777]

@@NorthwestCraftsman well I got it to ingage ,now it doesn't wobble. Just kept pulling it out and moving it around while locking it in. Maybe something was in there stopping it.

[@NorthwestCraftsman]

Awesome! Yea, I bet it wasn’t fully engaged. Glad you got it fixed though! Happy Woodworking! Josh Northwest Craftsman

[@AB-yu2tj]

What about if the slides are not squared.to.the fence. But the miter is.

[@NorthwestCraftsman]

When you refer to the slides, are you referring to the linear rails or the part of the fence that slides to make a longer fence?

[@scottgloster3601]

I have a newer dewalt miter saw and I did all the adjustments. Everything reads square except when you put a square on the blade, one side is perfect and the other is almost beveled. When I fix that side the other side gets out of whack. Tried multiple blades and cleaned the arbor. Any thoughts?

[@NorthwestCraftsman]

Fascinating. Is the other side of your square on the fence or the sole?

[@scottgloster3601]

@@NorthwestCraftsman This was with the bade of the square on the table and the long part on the blade. ( not on a tooth)

[@NorthwestCraftsman]

Interesting. Because it's not symmetric across the blade, it would imply that the table top is off true. It's possible they did that on purpose to prevent binding on the wood and I missed the asymmetry in when I did my adjustment. I'll head out to my shop today and see if I see the same thing.

[@NorthwestCraftsman]

Hey Scott! Thank you for your patience. I was able to check my blade for square and it seems to be on both sides. Given that yours isn't, I would guess the sole is out of true. Have you put a straight edge across both sides to ensure they're coplanar?

[@scottgloster3601]

@NorthwestCraftsman I did do that ,and the base was not level. I did some sanding on the high spots and now everything seems to be OK. Thanks for Taking the time

[@Justusandthejunipers]

Hey man I just got this saw today as a big upgrade to my current saw, and I noticed when i have the miter set to 0 degrees and tilt the saw 45 degrees directionally over to my left-hand side for a bevel cut, as i bring the blade down there is so much "play" in the wobbly finger guard that as it touches down it completely binds sideways. Fully stopping the downward motion of the cut. When I loosen the slide all the way out, slide it out at a 45 degree bevel the same thing happens as I bring the blade down, the finger guard binds even more, bending it sideways and stopping the downward motion of the cut. I've taken the entire finger guard off, and put it back on, tightened it up as much as possible. Just curious if you have experienced this as well? Or if you have any recommendations. It seems to be a major issue as it makes the 45 degree cuts near impossible.

[@NorthwestCraftsman]

Yup, I know exactly what you’re talking about. Binds for me as well in any cut other than a vertical. I just use the thumb of the hand actuating the saw to pull back the guard prior to cutting. This is one of the weak points in the design.

[@Justusandthejunipers]

@@NorthwestCraftsman ahhh ok gotchya, well hey thank you for responding I really appreciate the feedback

[@NorthwestCraftsman]

Not a problem! It’s a great question and honestly a design flaw in their part.

[@davidalten1414]

I am a new woodworker, my Question is I have a dewalt 779. I am trying to make a 7degree /45 angle cut when cutting a peace that calls for 10" do you cut 10" from 90 degrees or longest point to longest point?

[@NorthwestCraftsman]

Good question and unfortunately it depends on who provided the instructions. Most of what I've seen calls out the width of the workpiece and the angle/miter is whatever it comes out to given the angles + width. If you have a drawing or plan, feel free to shoot me an email and I can take a look at it!

[@davidalten1414]

this is a link to what I am having trouble with ,youtube video Matthew Peech .HOW TO MAKE A GARDEN TRELLIS / TUTEUR / OBELISK. 7 degree miter and 45 degree angle cut on a dewalt 779, I made sure the saw is set up per your video.

[@NorthwestCraftsman]

It looks like the measurement he's taking is on the longest edge once the bevel is cut. So, first, cut on the end to start it, then measure the 10in from the point furthest out, mark, and cut so the mark is on the longest edge. You can double check by measuring the longest edge.

[@davidalten1414]

@@NorthwestCraftsman Thanks

[@juansalazar9156]

What brand digital gauge is that

[@NorthwestCraftsman]

This one is a Wixey brand digital angle gauge. I’ve included the link below: amzn.to/433fJ6y

[@alfer9784]

👍👍

[@eeodle]

Hey, I have dw715. I am struggling to get it calibrated

[@NorthwestCraftsman]

That’s no good! What’s the issue you’re seeing?

[@eeodle]

@NorthwestCraftsman is there away I can send you pictures

[@eeodle]

@@NorthwestCraftsman can I send you pictures of that

[@NorthwestCraftsman]

Yea, if you go to my about page on the channel, my email should be there.

[@saral161]

🙏🙏

[@benbenbenbenben871]

Where are the screws for 90 degrees? 🤦‍♂️🤦‍♂️🤦‍♂️🤦‍♂️🤦‍♂️

[@misterfee6467]

Don't trust a carpenter square for this kind of work, honestly this is not fine tuning a saw. It's more like rough tuning. You need to actually make cuts to tune up the saw, Google five cut method.

[@NorthwestCraftsman]

Fair enough, the five cut method, at least for the miter, would be the most accurate. Used it for my cross cut sled and the method is awesome. Also, true “accuracy” can never achieved and as such, what drives my effort is the accuracy I need for my use case. For me, this is plenty accurate.

[@bigdaddy4975]

Most people are going to stop watching as soon as you pull a plastic speed square out to Check a precision tool. Just saying

[@NorthwestCraftsman]

You bring up a great point. I understand the molded speed square isn’t the ideal but the concept should still hold. If I didn’t caveat that in the video, I should have.

[@beri232]

@@NorthwestCraftsmanthere’s always gotta be that one guy… you gave the basics which is all any home do-it-yourself guy needs. The guys with the “precision tools” aren’t going to need a video like this.🙄