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Best Blade For Cutting Cement Board

 
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Old 05-23-2013, 04:12 PM   #1
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Best Blade For Cutting Cement Board


Hi Guys,
Can any of you recommend a good Wormdrive blade for cutting cement board? I have a couple of houses coming up next month.
Opinions greatly appreciated!
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Old 05-23-2013, 04:16 PM   #2
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Re: Best Blade For Cutting Cement Board


Siding or tile backer?

Tom

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Old 05-23-2013, 04:25 PM   #3
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Re: Best Blade For Cutting Cement Board


Freud Diablo Hardi-Blade.........3-4 times more expensive......lasts 25 times longer.
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Old 05-23-2013, 04:27 PM   #4
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Re: Best Blade For Cutting Cement Board


If your talking about a durock cement board product? I wet the board (keeps dust down) and just use a old blade in a dedicated old saw.. or of course you can cut and snap..

For hardie siding they make a special blade. Very dusty though.
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Old 05-23-2013, 05:00 PM   #5
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Re: Best Blade For Cutting Cement Board


Quote:
Originally Posted by tjbnwi
Siding or tile backer?

Tom
It's not siding, they are 8x4x 1/2inch sheets that will receive an acrylic render finish.
I have an old wormdrive but I was kinda thinking of using my festool rail saw!!!
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Old 05-23-2013, 05:03 PM   #6
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Re: Best Blade For Cutting Cement Board


Quote:
Originally Posted by Rich D.
If your talking about a durock cement board product? I wet the board (keeps dust down) and just use a old blade in a dedicated old saw.. or of course you can cut and snap..

For hardie siding they make a special blade. Very dusty though.
The board I'll be using is called Aqua panel.
I did some research and most advise was to use old framing blades but they really only work for a few cuts.
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Old 05-23-2013, 05:23 PM   #7
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Re: Best Blade For Cutting Cement Board


I use a 7" MK Diamond continuous rim dry-cut blade in my sidewinder for that kind of work. The amount of dust generated is truly epic though.
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Old 05-23-2013, 05:39 PM   #8
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Re: Best Blade For Cutting Cement Board


I just Googled Aqua Panel. It is the Knauf equivalent of Hardie backer.

I have used my TS 55 to cut Hardie. The 48 tooth blade will last about 10 8' cuts. No dust at all when hooked to the CT, but the bag will clog, you have to massage it to clear the pores out. I have not tried the Panther blade yet.

Tom
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Old 05-23-2013, 05:52 PM   #9
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Re: Best Blade For Cutting Cement Board


I used my Makita track saw with Makita FC blades

http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1

for Hardi soffit panels. Dusty but made for a nice cut.

ML
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Old 05-23-2013, 06:50 PM   #10
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Re: Best Blade For Cutting Cement Board


They make a electric shear that will cut up to 1/2". Not sure how well it's works but the next bathroom remodel I'm going to get one.
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Old 05-23-2013, 07:05 PM   #11
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Re: Best Blade For Cutting Cement Board


Schulter board or Wedi. Problem solved.

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Old 05-23-2013, 07:20 PM   #12
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Re: Best Blade For Cutting Cement Board


Quote:
Originally Posted by tjbnwi
Schulter board or Wedi. Problem solved.

Tom
I wish it was that easy. Takes almost an act of god to get Kerdi board and still have not been able to locate an avenue for wedi.

I have to Order all my drains and waterproofing online . People down here still think green board and Redguard is good enough.
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Old 05-23-2013, 07:40 PM   #13
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Re: Best Blade For Cutting Cement Board


We just cut some sheet Hardi today. When we are only doing a few sheets, we just use an old blade. Anything larger and we will use a Fiber cement blade. I have used the Irwin, Hitachi and Dewalt. The Irwin is a joke, Hitachi is ok, and the Dewalt cuts really nice. Still have to deal with the dust though.
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Old 05-23-2013, 08:46 PM   #14
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Re: Best Blade For Cutting Cement Board


Quote:
Originally Posted by country_huck View Post
They make a electric shear that will cut up to 1/2". Not sure how well it's works but the next bathroom remodel I'm going to get one.
I have the dewalt cement shears. They're nice for tile backer because you can cut very fast with basically no dust just a pile of crumbs. The cuts are not that clean so I wouldn't try it for siding.Trying to trim less than a 1/2" off makes for a really ragged cut. I've only used it on hardi board so I don't know how it works with durock. Rigid used to make a fibercement saw that had a built in blower and came with a filter top for a 5 gallon bucket. I've used one a few times and they cut nice with decent dust collection without a vac.
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Old 05-23-2013, 10:23 PM   #15
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Re: Best Blade For Cutting Cement Board


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Originally Posted by BBuild View Post

I have the dewalt cement shears. They're nice for tile backer because you can cut very fast with basically no dust just a pile of crumbs. The cuts are not that clean so I wouldn't try it for siding.Trying to trim less than a 1/2" off makes for a really ragged cut. I've only used it on hardi board so I don't know how it works with durock. Rigid used to make a fibercement saw that had a built in blower and came with a filter top for a 5 gallon bucket. I've used one a few times and they cut nice with decent dust collection without a vac.
I bought one a while ago when home depot was clearing them out. They work wonderful.

Almost zero dust.

Downsides are no debth adjustment, very loud and that hose that connects the bucket to the saw likes to get hung up.

If you can find one, pick it up. Its so nice cutting durock indoors
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Old 05-24-2013, 08:17 PM   #16
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Re: Best Blade For Cutting Cement Board


hitachi's been the best I've used haven't tried dewalt or frued tho.

I used cement board shears a few years ago. No dust/noise really but puckers edges a bit.

I know laminate guys use those guillotine type shears. Wonder how well they work on Hardie.
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Old 05-24-2013, 08:31 PM   #17
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Re: Best Blade For Cutting Cement Board


You could just duct tape a 1 1/2" shop vac hose to your grinder. It saves the wear and tear on the saw and is decent for dust reduction. Not good enough for cutting inside, of course.

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