Hi Dave
This sounds like sometihing I could do with myself... I *may* have the
pleasure
of digging a copper water pipe out of a concrete floor - would an SDS
be the
demon tool I could use for that? If you can spare a mo' - tell an
ignorant one
(me) what this SDS thing is! where's that fireproof suit :-)

Dave
This sounds like something I could do with myself... I *may* have the
pleasure
of digging a copper water pipe out of a concrete floor - would an SDS
be the
demon tool I could use for that? If you can spare a mo' - tell an
ignorant one
(me) what this SDS thing is! Where's that fireproof suit :-)

SDS stands for the initial letters (in German) Insert, Twist, Lock or
something similar. The upshot is that an SDS drill bit in an SDS chuck
is able to move back and forth and spin at the same time.

The spin bit is from a highly geared motor, the back & forth bit from a
pneumatic hammer, the combination of both drills concrete etc like you
wouldn't believe.

Nice bit is, you can have hammer, drill and hammer, or just drill.

So, removing your pipe; drill series of holes with contemptuous ease,
use a chisel to break away remainder.

Dave