Blades for Hardie Siding

Hyper-Fast

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Feb 23, 2011
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Does anyone know of a manufacturer that makes a blade sutable for cutting the Hardie cement board products that will fit the TS-55 20mm arbor?
 
Tom, maybe your last post was unclear to me, but none of those three blades has a 20mm arbor?
 
You're right, TJ. That's why I said I don't know of any.

I was offering and alternative way to skin the cat.

Come to think of it, I think there's a post on here somewhere that shows diamond, fiber cement blades that are sold in Australia that are for the TS 55.

I'll see if I can find it.

Tom
 
It looks like this blade is only sold in Australia? I looked at the US website and it wasn't listed, would anyone know as to why it isn't distributed  or sold in the US?
 
Hyper-Fast said:
It looks like this blade is only sold in Australia? I looked at the US website and it wasn't listed, would anyone know as to why it isn't distributed  or sold in the US?

I don't know the actual reason, but did you notice the cost?

Peter
 
Having cut some Hardi board stuff, I would recommend getting a really cheap 7 1/4" saw and a blade. The dust is INCREDIBLY abrasive and nasty. I used an el-cheapo BlackandDecker saw for this and by the end of the job it was really making nasty noises from the dust getting into the motor. Don't think I would torture my TS55 with that even though it is built for hard usage. Be sure to do this outside! Oh and wear a dust mask.
 
I use a 7-1/4" Ryobi that has been "rode hard and put up wet".

I also would recommend safety glasses that cover close on the sides, breathing protection (the best you have), and hearing protection. It screams like nails on a chalkboard (on steroids).

Also, don't forget to close the windows! I forgot once... What a mess!

Tom
 
Ok, don't cringe to bad, but I use the 48 tooth blade to cut Hardie siding and backer board. I keep one just for that purpose. I have the TS55 and use it hooked to the Ct22. Very little dust escapes the saw.

I know on thew UK web site they list a saw and blade just for this purpose.

If you want to use a diamond blade, get one of the proper diameter and thickness with a 1" hole. They should  have reducing washers available. If not you can purchase them here;

http://www.dexpan.com/diamond-blade-adaptor-ring-arbor-size-diamond-blade-concrete-cutting-granit.aspx

Tom
 
Why do you suggest a 1" hole?

Why not get one that matches the arbor to start with?

Tom
 
Hyper-Fast said:
It looks like this blade is only sold in Australia? I looked at the US website and it wasn't listed, would anyone know as to why it isn't distributed  or sold in the US?

You won't find it on the Festool website, as I don't think it's made by Festool. It looks like a 3rd party blade (look at the logo on the blade in the picture). That page is a little decieving - it doesn't say that it is a genuine Festool blade (just that it's for the Festool TS55) but it does imply it...

And yes, it's very pricey!

How much do you need to cut? Unless you're doing it on an industrial scale, just buy some cheap disposable blades & use those, then throw them out.
 
Tenryu make a 7 1/4" blade for Hardie Board, BP-18505.  It supposedly has five teeth (kind of like a fellow I once worked with many years ago).  It won't fit Festool saws, but will fit my P-C saw that has a dust pick-up tube that I can rig to the CT22 with judicious use of the Amazing and Incredible Duct Tape. 

[big grin]
 
I've used the stock and solid surface blade on my ts55 on Fibercement siding and it does well. I run the saw at 3. Dust collection is perfect. I do use a dust deputy and also my shop vac with the yellow bag made for sheetrock. Rick Bush has let me test and use a hardi blade for my Kapex and it works perfect as a hardi blade should. Now the Sedge did say in an undertone, I'm not sure I heard it right, that cutting fiber cement boards may void warranty? Not sure, no problem for me, might want to make sure. I have a fiber cement saw that works well , with a dedicated dust port for collection, but no rail, I love that part with the ts-55.
 
Tom,

If your question was addressed to me, the answer is;

I have not found a 20mm hole in a 5" blade. 5" seems to be the closest I can find. The site I linked has them. I prefer the 1" to 20mm over the 7/8" by 20mm, because the reducer is easier to handle. Stihl concrete saws have 20mm arbors, this is where I learn to use the reducer and my experience with the 1" or 7/8".

I may try the solid surface blade. Another item for my next order I guess.

Tom
 
Tom:

Do those people sell blades for fiber cement cutting? I didn't see any on their website.

A typical blade for fiber cement (Hardi for example) has only a few teeth but has teeth with a hook angle designed to cut the fibers (afaik). The cutting edge of the teeth are normally either just carbide or polychristaline (man-made) diamond and tend to look like this:

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What I saw on that site was classic diamond blades that more wear than cut like for wet saws of all types. They tend to look like this one:

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Tom
 
I worked with Festool a year or two ago to get a Hardi Blade on a TS 75 and 55 for a company that was building a house with a proprietary siding setup.  The siding was essentially a solid surface material.  We ended up having much better results using the aluminum blade rather than the hardi or solid surface blades for the plunge cut saws.  Just an FYI
 
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