Help! Can't seem to drill into wall!

[tangman]

I have tried drilling into the wall adjoining the neighbour, but I cannot seem to be able to drill a deep enough hole.

I have a hammer drill (710W Black & Decker CD70CRE) with a masonry bit & have been successful in drilling holes in walls not adjoining the neighbour.

I have checked with a metal detector & found no metal. I can only drill to about 20mm in & cannot drill any further. I probably have only gone through only the plastering!! With one of my drill bits, the end of the bit heated up & in the end it changed colour from grey to blue.

What am I doing wrong? Is my hammer drill not 'hammering' enough? Powerful enough or something? Or is the concrete unusually hard?

 

[Dellsmp]

Bet your neighbours happy

 

[joe-90]

If it's concrete you'll need an SDS drill. If it's hard brick you'll need a very sharp masonery bit.



joe

 

[damia-b]

Drill bit was duff before and certainly is now!
Cheap bits do not last. Get a good one.
You are not my son by any chance? it happened to him on Sunday.

 

[skybluescooby]

Probably a combination of a duff drill bit and a solid concrete block, same happened to me when i was drilling through garage wall when fitting a sky link, hit a solid bit and as hard as i pushed the drill turned red hot and eventually came out as smooth as a broom handle

 

[eggplant]

grab yourself an sds rotary hammer, you wont regret it, even if you buy a b&q £30 special. the term "hot knife through butter" will immediatly spring to mind after drilling the hole you have struggled with.

 

[tangman]

Thanks for all the advice.

Drill bit was duff before and certainly is now!
Cheap bits do not last. Get a good one.
You are not my son by any chance? it happened to him on Sunday.

Actually, that was the Bosch titanium drill bit I bought especially to try as I hadn't a clue what else to do. As you know, I ended up ruining it.

I was wondering, apart from getting an SDS drill, is there any other way of drilling into solid concrete with a conventional hammer drill??

 

[Softus]

I was wondering, apart from getting an SDS drill, is there any other way of drilling into solid concrete with a conventional hammer drill??

No.