Drill bits

Destination · 17 Nov 2012 at 14:44

Bit of advice needed please.
Need to drill through a solid wall right above a door frame, some form of reinforced lintel is in place.
Normal 10mm masonary bit isn't doing the trick, very slow progress once through the plaster, not standard block being drilled into, door header.

What is the bit of choice for going through something reinforced?

- and if cabling is to go through, need to make a hole mayeb 15mm by 20mm, what sort of stopped spacers etc can one place over the cabling to tidy up the mess in the wall, or is it better to use filler and a spot of paint?

Destination · 17 Nov 2012 at 14:58

Thanks.
Actually looks more like a concrete lintel rather than steel reinforced, I have been looking for any sign of metal on metal. Doesn't appear to be the case. Might need some form of diamond core bit, but wondering from folks who have done it.

Destination · 17 Nov 2012 at 15:24

The reason I was picking this area, is that a hole was already present where the previous occupant had made a right royal mess passing a telephoen cable through the wall.
I was seeking to expand the hole and make it neater, then close it back over after cabling.
Could move elsewhere but it'll leave 2 holes not one.

Destination · 17 Nov 2012 at 16:56

Yes, what i should have said, is it looks like a concrete lintel rather than a piece of steel, as in an I-bar or similar steel lintel equivalent.

I'll run the hole elsewhere.

Destination · 17 Nov 2012 at 17:03

Yes I was indeed. Its fine for blockwork, melts throught it rapidly, but the lintel is a different matter.