I just use Bosch GSB 550 Professional Impact Drill with the included masonry drill bit to punch a hole in the wall tiles (ceramic)...no issue with the correct method... make sure to place masking tape on the slippery tiles to help direct the opening

This post has been edited by eclectice: Mar 8 2023, 12:20 PM

Based on water valves, drains, and inlets on the wall, I'm only guessing where the pipes might be.

I've never used a cordless drill before, but the GSB 120 is capable of drilling masonry and tiles, so it should be good. If you are uncertain about the method, you can look up how to drill on tiles on YouTube. Make sure to use the sharpest masonry drill bit you can find. The masonry drill bit that comes with the Bosch drill can do the job as well.

The Bosch model code indicates the function; the one with a hammer function appropriate for masonry drilling is marked GSB; otherwise, it is simply GSR.

The GSB 120's chuck can only accept drill bits up to 10 millimeters in diameter, and I'm not sure if it will accept a 10mm drill bit for masonry drilling.

UPDATE:



This post has been edited by eclectice: Mar 8 2023, 03:22 PM

To assist you to guesstimate before drilling, there is a picture from this Loywat forum post of how the water pipes are laid out in the wall... I assume every house design has the same layout!




The way the drain conduit is spread out in the picture below is the one that concerns me the most if you decide to drill the floor in the future. Remember to fill the gap with silicone sealant if it is in a wet area to prevent water seeps into the floor concrete base (the area must be dust-free and dry first before applying the sealant).



This post has been edited by eclectice: Mar 9 2023, 11:48 AM