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10" saw blade with square teeth?

19K views 16 replies 13 participants last post by  ldavies 
#1 · (Edited by Moderator)
Can anyone recommend a 10" saw blade that has "square" teeth. I am having a hard time making nice clean splines. My current saw blade has teeth that give cuts that angle differently for each tooth. When I put my thin piece of wood in for my spline it goes in OK but the fit furthest away from the corner is not so good because it's not a square cut.

I hope this explanation makes sense and someone can answer me.

Thx, Lloyd
 
#3 ·
My guess is that you have an ATB blade - Alternate Top Bevel. If you look at the blade on edge one tooth points out to the left and the next points out to the right. This leaves a cut with a small inverted V at the bottom of the cut.
What you need is an ATBR -Alternate Top Bevel with a Raker. Every third tooth is flat thus leaving a flat bottom.
It's a pretty standard blade.

Lee
 
#4 ·
I remembered reading one of Don's box blogs about cutting splines ( http://lumberjocks.com/Don/blog/1702 ) and this question was asked; the response was

"If you can get to a home depot, the Ridgid 50 tooth combination blade sells for $29 and makes flat bottom cuts.

Popular Woodworking magazine listed it as one of the best buys for a saw blade earlier this year. It came in just under the really expensive WWII and Freud blades, but at a fraction of the cost."

but that was 700 days ago, not sure if they're still made
 
#5 ·
The Ridgid 50 tooth combo blade mentioned is still sold at home depot for $40 and is a great value (it is actually made by Frued). The 50 tooth has a raker tooth, which is a flat top grind and will produce a flat bottom. Most rip blades are flat top grinds which will give you the smooth bottoms for the splines you're seeking.
 
#6 ·
#10 ·
Lloyd - Flat top grinds are typically found on ripping blades. For splines, I'd think any of the better FTG rippers would do nicely….Infinity 010-024, Freud LM72, Amana RB1020, DW7642 or DW7124, Ridge Carbide, Forrest, etc.
 
#12 ·
As others have said a ripping blade has the flat teeth, they also usually have fewer teeth so it can hog out wood when ripping.
 
#13 · (Edited by Moderator)
"My "heavy duty rip" full kerf Freud blade is a FTG, but I am pretty sure that the narrow kerf ripping blade that I have (also Freud) has ATB teeth, so check before buying."

The Freud Diablo 24T TK ripper and the Freud TK Avanti 24T ripper both have ATB grinds, but the LU87R010 TK has an FTG like the LM72. Best to check since it's not universal.
 
#15 · (Edited by Moderator)
Lloyd - Just to be clear, an ATB/R configuration does not produce a true flat bottom. The ATB teeth protrude slightly beyond the flat raker, which leaves small grooves on each edge of the kerf of ~ 0.15" depending on the individual geometry. The ATB teeth will offer no slicing benefit if they don't protrude beyond the raker. Only an FTG will leave a true flat bottom. An ATB/R can still be used successfully for splines but they won't be perfectly flat.


 
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