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Old 08-17-2009, 11:40 PM   #1
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Best saw blade for treated wood????


Just wondering if some blades work better than others for cutting new treated lumber.??

the cheapie blade in the borrowed saw I used today jammed plumb tight and wouldnt let go today.

Do "SOME" blades have more kerf than others to give blade more relief??
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Old 08-18-2009, 08:04 AM   #2
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I presume we're talking about 7-1/4" circular saw blades...

There are the standard kerf thickness framing blades that most of us use. Assuming they have carbide teeth they're the right thing to use. A framing blade has something like 24 teeth because the wetter lumber's dust is hard to clear from the cut, and blades with more teeth don't cut as aggressively. That's what I'd use. All the major brands are fine.

I do have some thin kerf blades for my circular saw. One is a 60 tooth thin kerf carbide blade I use for cutting large sheets of hardwood plywood into more manageable sizes for the table saw. I wouldn't use it on treated lumber though...Too many teeth to clear the wet dust.

If your blade bound in the wood it is probably because the kerf is trying to close on it...Wet wood (southern yellow pine especially) tends to freak out and move, especially when ripped lengthwise. I presume that you weren't cutting a board between support points like sawhorses, which is dangerous and would certainly bind a blade.

Cheap-o saws sometimes also lack the guts to make some cuts. A good hypoid or worm drive saw is much more difficult to slow down compared to a $39 black and decker.
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Old 08-18-2009, 04:24 PM   #3
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Thanks KC, I found a good old sharp blade in my basement and I put that on and it works fine now. I looked for the one with the widest teeth and cut.
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