In article ,
Jonathan wrote:
Trying to help a friend with a sprained neck mount a 14" tv on a bracket
in a 70's flat with internal concrete walls using a standard hammer
drill So, the tv isn't THAT heavy, but the concrete is just not giving!
I drilled a smaller pilot hole (took 5 minutes to go 1" with a 5mm bit)
but when it came to the 8mm bit, really nothing was happening. I gave
up after about 15 minutes and 3mm having gone slightly deaf!

SDS drill.

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*It is wrong to ever split an infinitive *

Dave Plowman London SW
To e-mail, change noise into sound.