Bill Murphy
New Member
I am moving a toilet and putting in a tile floor. The new flange hole will need to go through porcelain tile, then hardibacker, then subfloor. Will my Diamond hole saw go through all three types of material?
Drilling hole for Closet Flange
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Jadnashua
Retired Defense Industry Engineer xxx
Diamond will cut anything known to man, but the quality of the diamond tool and your technique can affect how easy and clean that will be.
Using a diamond hole saw is more like grinding a hole rather than using a hole saw on wood. Using say a diamond cup on a grinder won't produce as clean of a hole, but it should be covered by the toilet. Once you're through the tile, you could pry/crack that out, and use a wood holesaw to finish through the subflooring. 5" would only be called for with a 4" pipe (4.5" OD, then plus the flange socket unless you're using an inside one).
Diamond tools come in dry and wet versions...if you try a wet one dry, you may not make it through the tile. On a wet one, you'll need a pretty significant drill motor to churn through tile with a hole that big.
Most of the time, people try to cut the tile before setting it.
Using a diamond hole saw is more like grinding a hole rather than using a hole saw on wood. Using say a diamond cup on a grinder won't produce as clean of a hole, but it should be covered by the toilet. Once you're through the tile, you could pry/crack that out, and use a wood holesaw to finish through the subflooring. 5" would only be called for with a 4" pipe (4.5" OD, then plus the flange socket unless you're using an inside one).
Diamond tools come in dry and wet versions...if you try a wet one dry, you may not make it through the tile. On a wet one, you'll need a pretty significant drill motor to churn through tile with a hole that big.
Most of the time, people try to cut the tile before setting it.
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