"David Hearn" wrote in message
...
The manual says not to use the standard 13mm chuck with the SDS drill when
in hammer mode. What is the actual problem with doing this? A standard
chuck can cope with basic hammer drills - is it the heavier force from the
SDS drill that could be a problem?

Its just that I need to make a large hole through a wall for pipework and
have a 40cm x 20mm standard masonry drill bit but only a short 6" x 22mm
SDS
drill bit. Just wondering whether I can make use of the longer non-SDS
drill bit in hammer mode in the standard chuck. What's the worst that can
happen?

Ooops - finger trouble - sorry about the no added content post :-(

Nobody seems to have mentioned yet that SDS bits are not that expensive from
builders merchants.

Surely worth buying a new bit instead of risking your existing bit, plus
add-on chuck.

Full on SDS is far more effective that any old style hammer drill
combination.

Regard it as a wise investment :-)

Cheers
Dave R