On Mon, 30 Jan 2006 13:37:39 +0000, andymason79
wrote:


Im an electrician, what I do is chop out the wall and the metal box to
25-27mm. Screw the Box to the wall, use 20mm round conduit and simply
put the conduit inside the box so that it is approximatley 5mm inside
of it.

That sounds like a good idea .. no grommets to push / fall out ;-)

I then take to crampets (tapered metal hooks), which hold the
conduit firmly in place.

Hmmm .. (Google crampets "Did you mean crumpet" lol) ah .. I think my
Dad had some of those once .. ;-)

Job done and you can skim over the conduit,
but you can usually without to much trouble pull new cables through if
you want/need to.

And no nasty changes in shape (oval to round) nibs of brick etc to
snag on ;-)

Can be a pain going that deep in stone, but in brick and block it easy
really.

Ah, even stone would bend to the power of the wall dimond disk wall
chaser! ;-)

I'd have to say that it's been a pretty good bit of kit. Not half the
dust folk warned me of (it may of been the new bag in Henry or the
fact I gaffer taped the Henry nozzle to the dust outlet on the chaser
at 45 deg (so it didn;t stick out at 90 deg) or the fairly flat wall
surface ..) and it ran through plaster / blockwork and walked through
some pretty hard brickwork (stuff that bent the nails on wire clips).

With the blockwork one cut and then break away the middle and for the
brick, two cuts (second cut with the blades set in and then used to
'route' the slot clean) and it's sorted ;-)

I'm not sure 'crampets' would have gone far in the hard brick re
holding the oval in place but a few dabs of Gripfill did the trick ..
till the plasterer turns up anyway ;-)

All the best ..

T i m