On Wed, 6 Feb 2008 18:44:28 -0800, "SteveB"
wrote:

FWIW, I had to cut some stucco, which is similar to cement board. A SawZall
made terrible jagged cuts, and pulled on the stucco making fractures that
looked like a giant cobweb. I got a SkilSaw with a metal cutting blade, set
the depth properly, and breezed right through it. I did have a helper with
a vacuum to help keep the dust down, but there was still a lot.

Steve



If what you are using is similar to "Durock", you don't really
need to use a saw.

You can score and break it like drywall.