In message , No Name
writes
Right, I need to drop some networking and coaxial cables down from the
loft into a bedroom.

Drilling a hole in the ceiling wall plate is easy from the loft side to
pass said cables through.

half way down the wall is a noggin.

I wish to mount the wall socket lower down than this noggin and run the
cables to the wall socket.

I dont really want to cut a hole in the PB to access said noggin to
drill a through hole.

Is there such a thing as a 1.5m m long drill bit extender I can place
between my wood boring bit and the electric drill?

being able to do this would be a time and a making good time saver!
You could buy 3 sets of these. Personally I'd cut the plaster.
https://tinyurl.com/y4hctpo9

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Tim Lamb