masonry drill bit...

23 Mar 2005
Reaction score
United Kingdom
Can someone tell me what usually is the thickness of exterior house walls as l need to drill a hole to get some cable from my dining room to the outside though the wall. Also can someone recommend the best drill bits to buy as the walls are not brick but mainly stone/concrete and when l have drilled walls inside to put things up the drill bits l have used are useless .. So best drill bits to buy and where can l get them.. Thanks
Sponsored Links
What age is your house? A normal cavity wall is about 13 inches thick including internal finishes. Although if you say your wall is made of stone and or concrete it's fair to assume its not typical contruction.

Easiest way is to measure the thickness at a window or door reveal.

As far as the drilling goes you really need to use an sds drill for what you want and a 20mm bit for the electrical conduit you should use to run the cable through.

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Sponsored Links