On 09/11/2020 22:15, Tricky Dicky wrote:

If your outlet is going just below the noggin it might be easier to cut an opening in the PB to take a dry wall back box and use a spade bit with one or two extension bars on at quite an acute angle and drill upwards from the opening.

Richard


You beat me to it. I was actually going to suggest a flexible extender
used from the bottom.

Whatever way the hole is made, it ain't going to to be easy to find it
inside the wall when feeding the cables through. Like others, I would be
in favour of removing a bit of plasterboard at noggin height.
--
Cheers,
Roger