I need to put a 2 gang knockout box into an external breezeblock wall. I've done several dry lined boxes but this one has to be in the external wall. All I can think of at the moment is to drill a matrix of holes and chisel the bits out. Can any give some tips into the easiest way to do this with basic tools.
Making a hole in breezeblock for knockout box
- Thread starter niknak71
- Start date
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Is this actually "breeze block" - ie the old soft clinker blocks, or denser concrete blocks or lightweight concrete such as thermalite?
If its the two former ones, then a drill is going to bounce around all over the place, and without a guide then it will be difficult to make a square hole. You may be better off with a 2" bolster chisel.
If its thermalite blocks, then you can cut it out with a spoon
If its the two former ones, then a drill is going to bounce around all over the place, and without a guide then it will be difficult to make a square hole. You may be better off with a 2" bolster chisel.
If its thermalite blocks, then you can cut it out with a spoon
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