Fitting 3/4 dado on 5/8 Arbor

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Forum topic by frostwood posted 10-28-2009 05:47 AM 2082 views 0 times favorited 8 replies Add to Favorites Watch
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38 posts in 3153 days

10-28-2009 05:47 AM

Even when removing the washer I can only fit up to 5/8 inch. I am noticing that most table saws come with a 5/8 arbor. Does the 5/8 arbor size indicate the dado capable width or is this the diameter size ?

-- With each new day, celebrate life. Love God with all of your heart. Share Jesus with those around you and make a positive impact on those you meet. Bob

8 replies so far

View drfixit's profile


318 posts in 3110 days

#1 posted 10-28-2009 05:50 AM

5/8” typically is the diameter of the arbor.

-- I GIVE UP!!!! I've cut this @!&*!% board 3 times.... its still too short!

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7980 posts in 3342 days

#2 posted 10-28-2009 11:12 AM

What saw do you have Bob?

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

View TheDane's profile


5401 posts in 3629 days

#3 posted 10-28-2009 05:44 PM

Is this a benchtop saw? If so, it can probably only take 1/2” of a stacked dado by design.

Quite often, these saws are direct drive or have a motor that is too small to handle the load of a wider/heavier dado set so the manufacturer intentionally provides a shorter arbor.

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

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8534 posts in 3615 days

#4 posted 10-28-2009 06:12 PM

the arbor diameter is 5/8” which is common on most 10” saws.

the max width of dado one can fit on the arbor varies between saws, and is usually stated on the specs of the saw. this depends on the LENGTH of the arbor, and not on it’s diameter.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

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160 posts in 3718 days

#5 posted 10-28-2009 06:53 PM

I faught with that problem for years with my old saw, the only solution I could come up with was a new bigger, meaner saw.

-- Dave- New Brunswick

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2593 posts in 3161 days

#6 posted 10-28-2009 09:12 PM

Depending on your saw it is possible that you are not supposed to put a dado on it. My old mastercraft maximum did take a dado but max 6” blade with a max 1/2” stack. My buddies mastercraft (not labeled maximum but looks almost exactly the same) is not designed to take one although it has the same size arbor. I don’t have the saw anymore se we could not compare motor specs. Best thing is check the manual, if you don’t have that, I would not go over 1/2” just for safety reasons.

-- If all you have is a hammer, everything looks like a nail!

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1041 posts in 3110 days

#7 posted 10-28-2009 09:43 PM

Thanks, everyone. Though I didn’t ask the question, dados were on my mind. I didn’t check any specs because I can’t afford a true shop saw yet, however, I do have a set of chippers (which I never used).

-- Wish I were Norm's Nephew

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38 posts in 3153 days

#8 posted 10-29-2009 04:43 PM

I have a craftsman 137.248880. I did find in the manuel where it shows a 1/2 ” dado on the spec sheet. I did remove the washer and fit a5/8 ” which I used on a sacrificial fence to cut a bout a 1/2 ’ dado for a toung and dado drawer .

-- With each new day, celebrate life. Love God with all of your heart. Share Jesus with those around you and make a positive impact on those you meet. Bob

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