Best Dado Blades 2019 – Top Picks & Reviews

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a dado blade at workIf you are serious about woodworking, you are going to want to invest in a set of good dado blades. We have got our hands on the top 5 best dado blades on the market, and we have road-tested them and reviewed them to help you when you go to purchase a set of blades. If you know your stacked dado from your wobble blade then head straight to the dado blade reviews, however, if you are unsure about the various options for blades, we have also included a helpful buying guide detailing everything from what Dado set is right for you to what you will be able to do with it. Making sure you get the best blade for you.


A Quick Glance at the Winners in 2019

ModelPriceWeightEditor Rating
Oshlun SDS-0842 8-Inch 42 Tooth
Oshlun SDS-0842 8-Inch 42 Tooth
(Best Overall)

Check Price
10 lbs4.9/5
DEWALT DW7670 8-Inch
DEWALT DW7670 8-Inch

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9 lbs4.7/5
MIBRO 416381 8″ Carbide
MIBRO 416381 8″ Carbide
(Best Value)

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5 lbs4.5/5
Freud SD208 8-Inch
Freud SD208 8-Inch

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6 lbs4.2/5
Porter-Cable 7005012 Oldham
Porter-Cable 7005012 Oldham

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1 lb3.9/5

5 Best Dado Blades – Reviews

1. Oshlun 8-Inch 42-Tooth Dado Blade Set – Best Overall

Oshlun SDS-0842 8-Inch 42 Tooth

This was the best dado blade set that we reviewed, and it wasn’t even close.  There are several factors that led us to this conclusion. First, this dado blade has the most teeth of all the blades we reviewed, 42 to be precise, meaning you can cut fast and accurately from, ¼” to 29/32 inches. The blade is 8 inches long, meaning you can create deep dadoes. This blade also had no problem with any wood we put it up against from the plywood to the hardest maple.

The instructions manual that came with it were straightforward to follow and will walk you through the steps to set up this product. The only issue we had was that the packaging was quite poor, which is a shame because so many of the other products arrived in excellent cases. Not the best for long-term storage but this is a minor issue.

Pros
  • High teeth count for great cuts
  • Suitable for all wood
  • Great Value
Cons
  • Poor packaging

2. DEWALT DW7670 8-Inch Dado Blade SetDEWALT DW7670 8-Inch

We had high hopes for the DeWalt, and we are glad to say we were not disappointed. DEWALT DW7670 was another 8 inches stacked dado blade. The significant thing we noticed was that the blades are very well made, and the cuts we were able to make were very clean due to the 4-tooth chippers used on this product. With only 24 teeth it wasn’t quite as quick as the Oshlun, and the two outermost blades by design are at an angle this means you do not get a perfectly straight cut and for this reason, we cannot give it the top spot. A very capable blade with all the wood we used. All in all, a very good blade and it comes in a fantastic case for storing safely.

Pros
  • Quality blade
  • Great storage case
  • Great for all woods
Cons
  • The slight angle on the dado blade

3. MIBRO 8″ Carbide Dado Blade Set – Best Value

MIBRO 416381 8" Carbide

Available in both 8-inch and 6-inch, we again were using the 8-inch blade. Including in this set are two outside blades 4 ⅛” chippers, one 1/16” chipper and 7 shims, meaning this blade set is very versatile. These use a durable C2 carbide teeth, which is machine welded for extra strength, it has a patented anti-kickback feature meaning you can produce as smooth a rivet as possible. It will cut grooves between 1/42” to 13/16”. It also comes in a fantastic plastic case for storage, which is a great way to save it from rusting. The only shortcoming, we had with this is that some of the blades wouldn’t lock as easy as some of the more expensive sets do. Therefore, sometimes we would have to readjust them and cut again. However, but with a little patience, we will able to get excellent results. The fact that this was a well-made set of blades, had a great and produced fantastic grooves for us was the best dado blade for the money.

Pros
  • Very versatile set
  • Best Value
  • Great storage case.
Cons
  • Must be careful with blade placement

4. Freud SD208 8-Inch Dado Blade Set

Freud SD208 8-Inch

The Freud SD208 wasn’t a lousy blade by any stretch. However, as for a company as old and prestigious as Freud, we have to say we expected a better product. These are pitched at the DIY end of the market, inside the case is two eight-inch outside blades, a set of steel shims, three 1/8-inch chippers, and three 1/16-inch spacers, you can also handily sharpen all the blades to keep them as good as new. You will be able to produce grooves from 1/4″ to 13/16″ in 1/16″ increments. The salient matter we faced with this dado set was that the two end blades end up cutting more profound than the chippers in the middle, making an uneven groove. So you would find yourself having to cut multiple times to widen a slot, it will leave a very rough surface, no matter how many times we reset the blades we couldn’t get it to cut cleanly. We would suggest you avoid these blades at any cost.

Pros
  • Cheap
  • Easily sharpen blades
Cons
  • Cut’s uneven dadoes

5. Oldham Adjustable Dado Blade Set

Porter-Cable 7005012 Oldham

Porter-Cable 7005012 Oldham is the only wobble dado blade we tested, and it was a thoroughly disappointing experience. The instructions that came with the blade were nonsensical, another example of Chinglish (Badly translated Chinese into English) often found in cheap imported products. It is claimed that Porter-Cable 7005012 Oldham was able to cut dado’s 3/16″, 1/4″, 3/8″, 1/2″, 5/8″, 3/4″ and 13,16″ in length. However, we had trouble concerning in getting it to be attached to our table saw. Moreover, by having a quick look at other customers reviews, it also seems that we are not the only ones who experienced this problem. There were also no adjustment marks on the blades themselves meaning you have to measure your dadoes purely by eye which is a very time-consuming process, and on top of that, the blades would cut all different sizes, making the grooves uneven and unprofessional. This product was a total mess and not something we could not recommend to anyone in the market for a Dado blade set.

Pros
  • Relatively Cheap
Cons
  • Impossible to attach to the table saw.
  • No adjustment marks on the blades
  • Poor instructions

Buyer’s guide

Now with the reviews out the way, you may still be wondering what the best Dado set on the market for you is? Drawing on that motivation, we have created a buying guide taking you through step by step the types of Dado blades and their uses. By the end of this, you will have a much clearer idea what Dado set is best suited for you.

What is a Dado Blade?

If you are an experienced woodworker or wood maker, you will know that many jobs need dado’s or rivets. In the past, woodcutting work would have been done by hand by using a specialty plane or chisel. However, nowadays you can save a lot of time and increase your craftsmanship by using a dado blade that attaches to your table or radial-arm saw. Dado Blade will help you in producing perfect rivets, tendons, or dadoes.

A dado set, or dado blade is a circular saw blade, usually used with a radial arm saw, or table saw, which is used to cut dadoes or grooves in woodworking, you may see this is a familiar groove for a drawer inside a cabinet. There are two types of Dado Blades we will look at both to give you a better idea of which one is for you.

using a dado

Stacked Dado

A stacked dado set consists of two circular saw blades fixed on either side of a set of removable chippers, and these chippers dictate how wide the groove will be. When the dado set spins, it is the two outside blades that cut the dado walls and while the chippers remove any waste material giving you a clean groove. This type of dado can be complicated to set up because, if you make a mistake and have to change the width of the groove, you need to remove the dado set from the table saw and reconfigure the chippers, making it a very time-consuming process.

Wobble Blade

Next up is the wobble blade, these are a single blade system making them easier to operate which consist of a circular blade mounted on a hub. These can be adjusted on the table saw by screwing the arbor nut tightly. Wobble Blade is different than many different moving parts because it came in one piece. The blades will spin at high speeds then it wobbles and cut through the material. The one-piece nature of the wobble blades makes them much cheaper and easier to set up. However, things to be kept in mind is that Wobble Blade will not produce the same clean grooves that a stacked blade will. The one wobble blade we reviewed we had serious issues with, something to think about when you are purchasing.

What type of blade is right for you?

Blade Type – To sum up, according to research and what we have already looked at the two options that available in the market, we could say a stacked dado blade is more accurate and gives you great versatility because of its ability to cut different size grooves. Whereas a wobble dado blade is less accurate and needs a less powerful saw to operate, they also tend to be cheaper.

Compatibility – When you are looking to buy a dado blade saw you must check and make sure it is compatible with either your table or radial blade saw. Most blades will work with most saws, but it is something to be aware of before purchasing. The teeth per inch(TPI) are what you want to take note of. Check what your saw can handle and get the appropriate blade. All blades have a standard speed and you will need a compatible saw.

Some tables will not have a long enough arbor to hold a Dado set. This is by design! Do not attempt to in anyway force or fashion an extension to the arbor. If this kicks you have a very fast saw flying around and this is obviously very dangerous. If your table saw does not have a long arbor it probably doesn’t have enough power for a full dado set. All we can suggest is align the fence and cut one side of the dado, then adjust the fence and make a second cut to complete the dado.

Size – Size is not the most important thing when it comes to your Dado Blade so don’t worry about it too much. All the blades we reviewed were 8-inch blades, these will allow you to create grooves for almost anything, do remember though that the bigger the blade the more power your saw will need if you have a low power saw maybe opt for the 6-inch versions. You can get 10 and 12-inch blades but there are industrial size Dado blades and are not covered here.

Types of Joint

With a dado, you can cut several different types of joint. The most common are the dado or groove, the rabbet, or the tongue and groove joint.

Dado Joint – A dado ends before one or both cuts meet the edge of the surface. Dados are often used to attach shelves to the base of a bookcase. Combined with a rabbet on an adjoining piece, they are used to make the rabbet and dado joint, sometimes used in case goods.

Rabbet – is groove cut into the edge of a piece of wood. When viewed in cross-section, a rabbet is two-sided and open to the edge or end of the surface into which it is cut.

Tongue and Groove – is a method of fitting similar objects together, edge to edge, usually from wood. Tongue and groove joints will allow you to fit two flat pieces to be joined together to make a single flat surface.

Safety Tips – Remember Dado blades are very dangerous pieces of equipment – they are sharp and can spin at up to 7000 rpm! Take extra precautions and always follows the instructions provided in the blades manual.

  • When your stacked dado is attached to your saw’s arbor make sure the arbor nut is long enough for the full size of the dado – Remember these are chunkier than your usual saw.
  • Never use a dado blade with the throat plate removed.
  • Never use a stacked dado or wobble dado with a circular saw. These are not designed for this particular type of saw, only use them with the correct radial arm or table saw.

Conclusion

So, we hope that we have made your life a little easier when it comes to purchasing the best Dado blade for you. While there are many options out there if you, thinking carefully about what your needs are you will find a great product and it will speed up your woodwork immensely. To reiterate we feel that the best Dado blade money can buy is the Oshlun SDS-0842 8-Inch 42 Tooth, this blade created beautiful smooth dado’s and was extremely versatile working with even the hardest of woods. If you are a little strapped for cash or want to see if a Dado blade for you the best value dado blade on the market is the MIBRO 416381 8″ Carbide. A fantastic piece of equipment at a great price.

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About the Author Adam Harris

Hi there! My name is Adam and I write for HealthyHandyman. I have a great passion for writing about everything related to tools, home improvement, and DIY. In my spare time, I'm either fishing, playing the guitar, or spending quality time with my beloved wife. You'll also often find me in my workshop working on some new project!