Best "value" TS blade for making box joints

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Forum topic by Dwain posted 01-17-2018 09:27 PM 2596 views 0 times favorited 6 replies Add to Favorites Watch
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623 posts in 5079 days

01-17-2018 09:27 PM

Topic tags/keywords: box joint jig table saw blade

I’d like to start making box joints. I am without a router table at this time so I have to use a table saw. I believe this will necessitate the purchase of a new blade that can create flat bottomed kerfs. I don’t want to spend a ton of money, so I’d like some suggestions as to a good “value” choice.

Thanks to all!

-- When you earnestly believe you can compensate for a lack of skill by doubling your efforts, there is no end to what you CAN'T do

6 replies so far

View Murdock's profile


169 posts in 3703 days

#1 posted 01-17-2018 10:09 PM

Depending on the size of the box joint and your tolerance for tedious work a rip blade will do it. Obviously if your need is larger than a single kerf it would require multiple passes and that is where the tediousness comes in :)

Not sure what your idea of “value” is but I have a neighbor that uses a 6” freud dado set that would work fine for box joints looks like Rocker has them for just under $90.

My father uses an Oshlun which is in also in that price range, they also have a box joint set for around $60 but then you can’t use it for the varying widths you can with a dado set.

I currently use a 8” freud dado that I got because someone returned it to a store without ever having put it on their saw but the store wouldn’t sell it as new anymore so I got lucky.

I don’t have any personal experience with the lower cost dado’s that are out there just what I have heard others complain about…

-- "Anyone who has never made a mistake has never tried anything new." - Albert Einstein

View greenacres2's profile


378 posts in 3387 days

#2 posted 01-18-2018 01:16 AM

I make a fair number of boxes with box joints. All 3 of my dado sets (Amana, CMT Orange, Oshlun) leave slight bat ears, not desirable in a box. Router would be my first choice, but absent a router table i’d be real tempted to try that Oshlun box joint set. Carbide Processors had it marked down a little earlier this week—and I almost bought it then. The Oshlun dado set I have is a very good set in my opinion, especially for the money.

Unless you’re willing to square the cuts, a flat tooth grind is the minimum starting point. But by the time I get decent FTG, i’d be at least in the neighborhood of the Oshlun box set which will give consistent 1/4” and 3/8” slots with flat bottoms.

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1147 posts in 1811 days

#3 posted 01-18-2018 11:38 AM

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4867 posts in 2714 days

#4 posted 01-18-2018 05:23 PM

Value? Depends on what your time and patience is worth.

Have used many things to make box joints: cheap rip blade(many cuts), router bits, Box joint blade (Freud, Oshlun, & Forest make them), and Dado blade. FTG Rip blade is cheapest entry point, followed by router bit; unless you find a used deal on dado/box blade.

After I picked up a Freud box joint blade at garage saw for $25 a few years ago, have never used anything else. Dedicated box joint blade is super easy to use, no adjustment shims required like with universal dado blade, and cuts square edge in plywood with no splintering. Once I had one, can say that is worth spending $60-70 (sale prices) on dedicated box joint blade, if you are going to make boxes on a regular basis. YMMV

-- If it wasn't for bad luck, I wouldn't have no luck at all, Doom, despair, agony on me… - Albert King - Born Under a Bad Sign released 1967

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Fred Hargis

7203 posts in 3713 days

#5 posted 01-18-2018 05:30 PM

Unless you want to do it with a saw blade (the many cuts thing) those sets all seem to be around $100 (or more). That is, except for the Oshlun set. I have a couple of Oshlun blades and consider them to be high qua;ity, and i see Carbide Processors sells the box joint Oshlun set for $55…..if’n I was in the market with your criteria it’s the set would look at.

-- Our village hasn't lost it's idiot, he was elected to congress.

View waho6o9's profile


9055 posts in 3796 days

#6 posted 01-18-2018 06:57 PM

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