Drilling down stud wall

[Richard Burns]

Totally fed up with this one.
Any thoughts on hole drilling to run cable down a stud wall, I cannot get a straight line through.
I am trying to run cable from the loft down to the CU in the hall.
I have drilled down 1.7m and can take the drill bit up 1.7m and the total height is about 3m.
I have run cable rod up 6m! and should be out through the roof, but I cannot see the rod at the top.
Rodding down I hit something just below the last down drilled hole.
What am I doing wrong (apart from not drilling the holes by taking out the plasterboard at noggins)?
Any thoughts on wall construction, etc.
Thank you!

 

[Guitarist]

I often use a 4" holesaw to make a hole, they normally fix back in on a batten very well and easy to fill and repair.

As long as they don't disappear down the cavity....

 

[Rockingit]

I had to do this today...get an extra pair of sockets installed onto an internal wall on a vapour membrane construction. So that's 80mm of plaster/foam board, then batten, then the (not to be touched) membrane.... and it was holesaw to the rescue!