RE: SDS drill + Patress box

["Hawes,Timothy Edward \(GEG\)" <haweste@xxxxxxxxxxxxxxx>]

Pedro,

ISTR that you can do about 50 single-gang cuts before you may need to
replace parts (you can buy spare blades etc.). I don't have one of these
though, and I can't find the reference I was looking for, despite
Googling. It also depends on what material you're drilling into. You'll
get more holes when drilling into lightweight blocks (aka breeze blocks)
but less on dense concrete or brick. Some places are offering "hard
material" cutter sets now and there's quite a few suppliers if you
Google for "box sinker".

You could try over on UK_Selfbuild for a more definitive answer on tool
life :-)

HTH,

Tim H.

> -----Original Message-----
> From: Pedro de Oliveira
>
> Thanks Andy
>
> Does anyone know how long one of these things would last?  I
> mean, how many
> 2 gang back boxes would I be able to "chisel" before it
> needed replacing?
>
> Cheers,
> Pedro
>
> -----Original Message-----
> From: Andy Davies
>
> Screwfix.com do them, not sure what they cost though.
>
> >Hi all,
> >
> >Some time ago I remember reading that some people on the
> list had used a
> SDS
> >drill and a patress shaped chisel to make holes for electrical
back
> boxes...
> >
> >Where can these chisels be bought & how much are they and
> how long do they
> >last, would I need 5 or so to do 2 double gang boxes?
> >
> >Cheers
> >Pedro