What is a Dado Blade and What is it Used For?

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A dado blade is a circular blade that’s designed to work on table saws or radial arm saws in order to cut grooves into wood and help connect pieces together.

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There are two types of dado blades available: stacked dado blades and wobble dado blades. As you can probably tell from their names, both look somewhat different from one another.

Stacked dado blades are comprised of two outer cutters that look like a typical table saw blade, and on the inside, there lies several removable chipper blades, often of varying widths. You can add or remove one or a combination of those chipper blades to get your desired cutting width.

Wobble dado blades are a lot simpler than their stacked counterparts because they only utilize a single blade to create the grooves that you desire. They utilize an offset rotation that helps them get an almost similar result to a stacked dado blade, but they’re not really as good.

A high quality cabinet table saw is probably the best option to make dado cuts with, but as long as you understand how to use the dado blade on your saw, you’ll be able to make the following cuts:

Dado Joint – This is basically a slot/trench cut into a piece of wood that appears to have three sides if you view it in cross-section. Dado joints can be cut either perpendicular or across the grain.
Finger Joint – This woodworking joint is achieved by cutting a bunch of interrelated cuts in two pieces of wood in a rectangular fashion. The end result looks like the shape of the human hand when the fingers are interlocked perpendicularly.
Rabbet Joint – This is a groove that’s cut into machine-able materials such as wood. It looks like it’s open to the edge of the surface it’s cut into when viewed in cross-section.
Tenon Joint – This joint is often formed on the end of rails and can be inserted into holes that are rectangular- or square-shaped (called a mortise) found in the corresponding member. Basically, an ably tenet joint should fit perfectly into a mortise hole.

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Great explanation for someone like me who has never put a step in a wood-shop, just heard this term 'dado stack' while two guys were talking nearby.

kitsukeita

I love you. I stumbled on you in a sign makers forum. You explain things so well. You are a true teacher.

juiceguentzler

Short. Concise. Yet still descriptive. Great video.

protem_music

Older guys just explain things better. Thank you Sir!

kriskowalski

Very helpful - thank you! Also a a big thank you to the cameraman / camerawoman too - very clear viewing angles!

matttheknife

This is very useful for a beginner. Needed and much appreciated.

JoeTheDIY

Now I know all about dado blades, thank you. This would do a nice square cutout on the back of a picture frame ( future retirement project) Looks like a 70's Marantz receiver in the background. 👍

ultimatebasses

As usual a very clear and no-nonsense explanation - thank you!

tatakatakashi

This is the type of video that I miss. Thank you for your knowledge!

Dangineering

Great video. Explained all one needs to understand and provided a demonstration in just 4 minutes. Well done!

utopian

I'm looking at buying my first table saw and the article started making note if the saws were Dado blade compatible or not and that lead me to more searching and I came across this video. Thank you very much for the simple and concise explanation of what it entailed!

chaz

Excellent explanation and demonstration. Thank you for sharing your knowledge in such a clear and concise manner.

anthonymanoogian

An excellent tutorial for my level of woodworking knowledge.

Thank you for posting.

muso

Thank you Sir for this video, you got right down to the point and described everything in a simple way for anyone to understand and follow you. Thanks to your video I now feel very well informed about this tool.

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