On Fri, 11 May 2018 19:34:22 +0100, Brian Gaff wrote:

Well if its an outer wall its probably mostly brick of some kind and if his
luck is like mine the places you decide to drill are either the hardest
brick known to man, or right into the join between them!

Brian

BTDT! My lintels are concrete with pebbles. How the hell we got holes with a
Rawltool I just can't remember.
Nowadays it's the SDS. I tried the Bosch bits but it really needs a good
masonary bit and leaning on - not too much though, with a 6mm bit.
--
Peter.
The gods will stay away
whilst religions hold sway