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Flat top blade for joinery?

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Forum topic by Andybb posted 12-13-2019 06:42 AM 387 views 1 time favorited 10 replies Add to Favorites Watch
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Andybb

2384 posts in 1212 days


12-13-2019 06:42 AM

If I have to at some point I’ll spend the $100-175 for a real-life dedicated joinery blade but for now I’d settle for a regular or thin kerf blade with a flat top. Does such a thing exist? Google doesn’t think so. My dado set isn’t flat so that’s not an option.

-- Andy - Seattle USA


10 replies so far

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CaptainKlutz

2257 posts in 2103 days


#1 posted 12-13-2019 07:08 AM

Yes.

Did you check out the Freud Ripping Blades? These are flat top, or FTG grind:
https://freudtools.com/explore/saw-blades/ripping/heavy-duty-ripping
https://freudtools.com/explore/saw-blades/ripping/thick-stock-ripping

I like the LM72M010, and it’s less than $60 online. Can find it on sale occasionally for < $50. Freud also makes same blade with nasty red coating: LM72R010
CMT Tools also sells similar FTG grind rip blades, like the 250.024.10 or 201.024.10.

Freud Glue Line Rip blades are TCG grind, cuts a little smoother side wall, and has slightly higher tooth count. The LM74M010 TCG rip blade grind is flat top but with slight radius in corners. If you break sharp corners on tenons with single pass of plane or sandpaper, you will never realize it’s not perfectly flat, or square in corner.

Hope this helps?

-- I'm an engineer not a woodworker, but I can randomly find useful tools and furniture inside a pile of lumber!

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wildwoodbybrianjohns

712 posts in 156 days


#2 posted 12-13-2019 07:20 AM

You can have whoever sharpens your blades file off the teeth down to an FTG, its the cheapest way. Then youve got your dedicated blade for 10 bucks. I have a standard kerf blade and a thin kerf blade filed this way, these were both rip blades, but I supppose you could also do this on a 40 or 60T.

-- Wildwood by Brian Johns: If you tell the truth, you dont have to remember anything (S. Clemens) Edit: Now where is that darn pencil/ tape measure!

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WoodenDreams

886 posts in 519 days


#3 posted 12-13-2019 09:30 AM

grizzly has flat top blades.also in thin kerf. any of the woodworking stores should have what you need.

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Andybb

2384 posts in 1212 days


#4 posted 12-13-2019 02:42 PM

Excellent! Thanks guys.

-- Andy - Seattle USA

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jamsomito

457 posts in 1034 days


#5 posted 12-13-2019 03:04 PM

I was in the exact same boat as you. I really wanted the Amana blade recommended by Stumpy Nubs but ultimately budget called for something less. I ended up getting the thin kerf FTG rip blade by Freud. It works well. Kind of wish I got the wider one for joinery purposes, but this is also by far the most versatile – thin kerf cuts a little easier on my contractor saw, and also doubles as a thick stock rip blade or for long ripping sessions on lots of stock. In the end I’m happy with it. Keeping the door open for something nicer once budget allows.

I wrote a little on it in a couple blog posts about a project I’m doing now:
https://www.lumberjocks.com/jamsomito/blog/130368
https://www.lumberjocks.com/jamsomito/blog/130388

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Andybb

2384 posts in 1212 days


#6 posted 12-13-2019 03:17 PM

Yep. I was looking at what Stumpy said but the blades just seemed a little spendy. I think I’m leaning towards the heavier blade as I think the thinner one might have a slight deflection in harder woods while making finger joints.

-- Andy - Seattle USA

View knotscott's profile

knotscott

8364 posts in 3984 days


#7 posted 12-13-2019 03:52 PM

Freud, CMT, Infinity, Ridge Carbide, Forrest, Amana, Tenryu all have FTG rippers in full kerf and thin kerf.

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

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Andybb

2384 posts in 1212 days


#8 posted 12-13-2019 04:18 PM

Eureka! Found this on Amazon. Seems to be worth a try. Great reviews, long life and $38 plus I had a gift card.

Kempston Kempston Corporation
4.8 out of 5 stars 49 Reviews
Kempston 99312 10-Inch by 24 Tooth Industrial Rip Thick Kerf Blade with 5/8-Inch Arbor

5.0 out of 5 starsVerified Purchase
Reviewed in the United States on September 13, 2019
This is my go-to-blade!
I have Ridge Carbide and Forrest blades which are very good blades but the Kempston is my “go to everyday blade”.
It is the first blade I have had that didn’t burn hard maple. I couldn’t believe it as this has been a problem in my shop forever and the topic of a lot of discussion with fellow woodworkers. What I liked best? Its the flat tooth blade!
UPDATE: blade finally beginning to dull. Ordered a new one and checked purchase date. Blade did its job for over 3 years. Ripped a lot of wood and cut a lot of groves. Mostly hard maple, oak, cherry and mahogany. Outstanding value.

-- Andy - Seattle USA

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therealSteveN

4655 posts in 1182 days


#9 posted 12-13-2019 05:21 PM

I have the Infinity FTG 8” Dado blade with the carbide right at .250, which is that perfect third for a true 3/4” stock, or for true .50 stock it’s the perfect size for making a lock rabbet. I can’t tell you how much this single blade simplified my woodworking.

Normally 129.90 but when I got mine it was on sale for 99 bux.

I think a few of their items are heavy on the gimmick, but this blade is well made perfection as a jointery blade.

The other one I like is the Freud nesting blade with 1/4” and 3/8” cuts, though they aren’t as dead perfect as the .250 on the Infinity.

Freud box joint blade Even though it’s not a perfect 1/4 or 3/8” I use it in conjunction with my I box for making flawless finger joints. With that jig the blade doesn’t need to be perfect, it’s so adjustable you can use it with any blade.

-- Think safe, be safe

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Andre

3015 posts in 2414 days


#10 posted 12-13-2019 06:02 PM

I have the 24 tooth FTB Dimar that I picked up at Lee Valley years ago, still works like new whereas the 40 tooth Freud Premium blade I bought about year ago has developed some warp? Not impressed for a $100 blade, so think I will stick with Forrester blades from now on!

-- Lifting one end of the plank.

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