Drilling hole bath tap

[XanderHarris]

What size hole cutter is needed for bath tap mixers?

 

[denso13]

Around 30mm but the instructions will specify the size. Or measure them.

 

[CountryFan]

I would have said about 19mm or 21mm

 

[avonmouth]

The last one i drilled was about 28mm..The tap thread will be 3/4 inch BSP which equals about 27mm.

 

[ChrisJP]

Well, that's 3 possibilities!
Which just illustrates that no-one can specify a particular hole size. You need to measure the outside diameter of the mixer tap fixing boss and cut the hole to that diameter.

 

[denso13]

Well, that's 3 possibilities!
Which just illustrates that no-one can specify a particular hole size. You need to measure the outside diameter of the mixer tap fixing boss and cut the hole to that diameter.

Or read the instructions, as said.

 

[dilalio]

What size hole cutter is needed for bath tap mixers?

One or 2 hole tap?

 

[Madrab]

Pick a hole saw that's a few mm larger that the 3/4" BSP tap inlets but obviously smaller then the tap base collars. I'd usually use a 32-35mm cutter, leaves a little wiggle room.