I need to make a 40mm hole through the bathroom floor to couple the
> outlet from the bath to the drain. But the floor is ceramic tile, 9mm
> ply and 22mm pine and I don't know where the drain pipe is from the
> top. I can get under the floor but with difficulty - ie there's about
> 18 inches clearance.
>
> Anyone suggest how to drill through the wood and the ceramic tile -
> and take into account that there might be the odd nail around or screw
> holding the ply to the original flooring.
>
> Rob
Is the bath already in place ?