rayem723

Hi and I thank you in advance for your answers.

I am installing HardiePlank cement board siding. I was using a 10" chop saw to cut the cement boards with a carbide tipped blade. This was not good, to much dust and the blade wore out very quickly.

A new diamond 10" blade for the chop saw is very expensive. And so is the cutter, which does not work very well.

I have a 7 1/2" diamond circular saw blade made specifically to cut the HardiePlank in a circular saw, which rotates opposite a chop saw.

Can I install the 7 1/2" saw in my chop saw backwards, so it rotates correctly. It looks like it would work fine. I don't need a lot of cutting width.

I would like to know if anyone has ever installed a circular saw blade in a chop saw before.

Thanks, Ray

jcalvin

Never have done it. I would pay close attention to the rpm rating of the saw blade vs the speed of the chop saw. If I had to guess, I would say that it wouldn't be very safe. The miter saw rating is more than likely calibrated on a particular size saw blade and anything else might not be very safe. As far as turning it backwards, it doesn't matter when I put a conventional saw blade on my left hand circ saw.

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Cal

You hired WHO?

fungku

The angle of the carbide tips for cutting is different on a chop saw than for a circular saw for obvious reasons.

if the arbour sizes matched, then you could probably do it, and it may work okay.

However, I just wouldn't do it. Use the right tool for the right job. Anytime you don't you are compromising your safety.

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rayem723

Works like a charm with no problems. Used it all afternoon.

Mounted a 2 X 10 on the base of the chop saw in order for the blade to cut through a 5 1/8 cement board.

Hooked up a shop vacuum to the dust port to catch the dust the blade puts out.

Cuts like cutting butter. Does not feel unsafe.

Ray

Lansing

Ok I thought about it...So yes you can do it...The dust on that product is a killer but the shop vac is a good idea...

super carpenter Rob

dewalt makes a blade the cut masonary for about 15.00 and it works for backer board and the board you are using is made by the same company it will work and ware a dust mask I hate that stuff regards Rob