Finger Joints with ATB blade

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Forum topic by ChuckH posted 254 days ago 580 views 0 times favorited 8 replies Add to Favorites Watch
View ChuckH's profile


37 posts in 400 days

254 days ago

I just got a new blade, .125 kerf and ATB, I didn’t think much of it at the time honestly. I just made a test cut and there is an undeniable “V” shape in the cut – is this ATB blade going to be ineffective for anything but through cuts?

8 replies so far

View kdc68's profile


1964 posts in 910 days

#1 posted 254 days ago

To get a truly flat bottom cut, you will need a blade with a Flat Top Grind (FTG). Lumberjock Knotscott is the blade expert on this site. Perhaps he will see your forum question and offer advice on the best FTG blade

-- Measure "at least" twice and cut once

View RockyTopScott's profile


1133 posts in 2112 days

#2 posted 254 days ago

I use a box joint blade to get a good flat bottom result.

-- “When you want to help people, you tell them the truth. When you want to help yourself, you tell them what they want to hear.” ― Thomas Sowell

View pintodeluxe's profile


3335 posts in 1447 days

#3 posted 254 days ago

A 50 tooth combination blade is great for joinery work. Otherwise, any ripping blade with a flat top grind will work.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View lepelerin's profile


321 posts in 959 days

#4 posted 254 days ago

here is an excellent post by Knotscott about saw blades

View ChuckH's profile


37 posts in 400 days

#5 posted 253 days ago

Well… Shucks, I feel dumb now, I read all that stuff before buying a new blade and just didn’t put it together. Thanks everyone, looks like I’m back to shopping :)

View gfadvm's profile


10737 posts in 1324 days

#6 posted 253 days ago

I bought the Freud Box joint cutter blades and have been very pleased with them! They are also useful for rabbets, dados, and half lap joints. Pricy, but one of my better investments.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

View bigblockyeti's profile


1494 posts in 354 days

#7 posted 253 days ago

Of the ATB blades I have, I used them exclusively for through cuts. I have several 50T combination blades, that’s what I usually keep on my table saw. They produce mostly smooth bottom cuts with only slight lines at the edges of the flat bottomed area. Even the side blades on my stacked dado cutter do the same.

View DanielP's profile


197 posts in 526 days

#8 posted 253 days ago

Kempston #99312 10” 24 tooth flat 32.99 on Amazon. It has worked well for me.


-- Dan P.

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