On Mon, 19 Feb 2018 18:42:05 +0000
ARW wrote:

On 19/02/2018 14:13, Adrian Caspersz wrote:
On 19/02/18 14:04, Vortex13 wrote:
Hello,

I am about to refurbish a 1960's flat.Â* Walls therefore are
plaster on masonry (brick) and I intend to install 8 "new" double
sockets so will need to recess that number of steel back boxes.
Not something I have done for some years.....when I did I used an
angle grinder and it was horribly messy/dusty.

Forget distributing 240V.

Thread the house with USB power connections.

/me runs, that way... ;-p




FWIW I'm aware of the use of these things in conjunction with an
SDS drill- not tried myself.

https://www.screwfix.com/c/tools/ele...ers/cat6150002

I have never found one to be of any use.

Stitch drilling and or SDS chisels are the only methods I have found
successful on hard brick. And even then you sometimes just have to
bond in the back box (old bonding and a bit of cement) as the brick
collapses.


+1

But I sometimes use a wall chaser to make the cuts for the box edges
and I have had some success in cutting through the plaster/render coat
with a multi tool when it positively, absolutely has to be neat - like
a back-to-back socket.