Cutting Hardibacker With Grinder. It is also possible to cut hardibacker board with an angle grinder which has been fit with a diamond cutting wheel. It's a flat piece of really hard plastic that has a sharp little hook for the actual. Cut one side, and snap it over a straight edge, like the best way i've found to cutting hardibacker is using a diamond blade on a hand held grinder.
Years ago i was told to always use mastic for vertical tile, so i bought a premium mastic and began the shower tile over hardibacker.
Homedepot or lowes should have it. Angle grinders and circular saws with dm 7/8 in. Good mask, good dust collection, good eye protection are all necessary. The last time i did this i used a ceramic blade in a jig saw. Ive used carbide blades in my jigsaw, diamond blades on my angle grinder, masonry blades on my circular saw. When tiling a bathroom floor, i never look forward to the dreaded toilet flange cutout. I think if a thief wants it there going to get it all you can do is slow them up. What's the trick to cutting curves and circles in hardibacker?
