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My guess is it is just more resistance than you are used to. It is probably worth taking an extra/scrap piece of the Hardiebacker, setting it flat on a couple of 2x4s on a workbench or flat surface, and practice drilling in a few screws with the ability to put your whole body weight on the drill, to get a feel for how hard you will need to push to get the ...


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If the heads of screws are in good condition(clean) a drill/driver probably best bet to remove. Dirty or damaged heads, a hammer is useful, either pull them up or hammer them down. If hammering them down, make sure nothing underneath them, gas or water lines/pipes, electrical cables, someones head.


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I think your real question is "How can I cut backer board with a circular saw". The diamond blade in your picture is a grinding blade. It's designed to work with a variety of hard surfaces from tile, to cement, to even metal (not ideal for metal but I digress). Backer board can be hazardous to cut because it contains silicates (as your CDC link ...


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Blades are described by the number of teeth. For example, 24T , 40T, 80T. Just ask for a hardboard blade which will be labeled as such and have very few teeth. One sold at the orange big box has 4 teeth, is made by Diablo (top of the line quality) but sells for $45. Store Sku 619584. This is a specialty blade that you won't find everywhere. DIABLO 7-1/4 in....


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That's a stone/tile/masonry cutting blade with a diamond 'turbo' rim. It will work for Hardie Backer board or similar fiber-cement products but it'll make a lot of dust, and would almost certainly be awful at cutting any sort of wood or wood paneling - more likely to burn through than cut it. Some other rim types for diamond blades are: Continuous ...


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The tile, if installed correctly will not come off the backer board cleanly, it will leave behind thinset or rip up chunks of backer board when you demo it. Even if it was relatively easy, keeping the flatness spec of 1/8" within 10' and 1/16" within 6' will be hard to meet with reused board. Its best to get back down to the subfloor to inspect ...


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