The Medway Handyman wrote:

A.Lee wrote:
I've got a line of old concrete posts ...
Trouble is, I cannot drill into these posts to screw in the cross
battens. Invariably I get in half inch or so, hit a stone, then the
drill rapdily goes blunt, and goes no further.
SDS drill with diamond bit?

SDS with a normal masonry bit. Done it loads of times.

No being picky, but why is a SDS drill with a normal masonry bit, better
than a normal hammer drill with the same bit?
Vibrates/hammers more, or something else?
Thanks
Alan.
--
To reply by e-mail, change the ' + ' to 'plus'.