[Duchesne]

Originally Posted by Paddy2013

My guess is that you've got a wood or metal bit, rather than a masonry one. Or possibly a masonary one with the head gone on it. The type you need is the one on the left of the attached.

http://wiki.diyfaq.org.uk/images/2/2...pes_2734-7.jpg

Thank you soooooooooo much :-)

I didn't think I would off needed a masonry bit for a partition wall but clearly I've no idea :-)