On Mon, 06 Dec 2004 03:37:40 GMT, "puttster" wrote:

"Pelorus" wrote in message
. com...
I am in the process of installing a handrail down to my basement. I
need
to attach two of the rail mounts to a cement wall. I spent a few hours
trying to drill into the cement--- very slow. I am using a 7/16th
drill

Why dont you get one of those tools that uses a 22cal shell to shoot a
fastner. They shoot nails and (I believe) a nail sort of thing with a
threaded end to put a nut on, like a stud (correct me if I am wrong, I
have only shot nails in the past). These things do the job. I have
fired them thru all sorts of stuff.

Mark

Yes I tried all the modern technology, star drills, carbide drills, hardened
drills pilot holes,
and altogether $20+ worth of crap and no, you cannot drill treough concrete
with aggregrate. think of it as a sunk cost. start fresh. the .22 gun
works great.

I have never had a problem in any type of concrete with an ordinary
masonry bit and a hammer drill.