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  Anthony Toop June 1, 2012 at 6:38pm

  SDS+ drill and suitable drill bit would do it, i have a battery dewalt hammer drill and that can struggle at times but an SDS is a breeze in comparison, HTH
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  Paul McNulty June 1, 2012 at 9:20pm

  If it's stone, don't try to SDS it as you'll likely crack the stone. Go for the mortar. If by "stone" you mean any sort of brick or block why not go for the mortar joints?

  If it's solid concrete, for instance one of those pre-fab garages that seem to be made from a concrete that's stronger than anything on the planet, go for SDS.
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  Mark June 1, 2012 at 9:20pm

  SDS will do it but if your not going to use it that often get a mains one that way you won't kill the batteries plus it will be cheaper..;-)

  Plus surley your Bosch was a hammer drill anyway..no ? as drilling into masonary with a standard drill is an exercise in blunt drill bits and the art of making fire Lol

  Cheers

  Mark
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  Anthony Toop June 1, 2012 at 9:36pm

  Been there!  long ago mind :-)
  
  Mark said:

  Plus surley your Bosch was a hammer drill anyway..no ? as drilling into masonary with a standard drill is an exercise in blunt drill bits and the art of making fire Lol

  
  
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  Simon Smith June 1, 2012 at 9:39pm

  if there's lots to do you could hire a hilti gun would make very short work of it or hire an sds as suggested rather than buy one.
• PRO

  Neal Barker @ Etesia uk June 1, 2012 at 10:04pm

  how tall is the wall or do you mean side of a house

  if the first then would it not be possible to ram in box section steal uprights and run the wire through that

  if the second then is there any window frames you could run the wire on a diaginal then join wire between this horizontaly

  apart from them im on sds idea aswell
• PRO

  Geoffrey King June 2, 2012 at 10:45am

  SDS drills are just quick change system on the chuck

  you get so-called hammer drills which are percussion drills

  and rotary hammer drills, these drive in the drill bit differently,and are better for hard stone

  you need to go slowly, with a sharp bit and you will be fine

  using quad bits, i.e. 4 cutting surfaces, with advanced grooves on shank to facilitate faster removal of waste will also make a difference

  SDS chuck system gives better transference of the power along the drill bit as compared to the hand tightened or older fashioned chuck keys system, where typically the chuck head can get vibrated to destruction

  I remember once going to AEG HQ in the UK and drilling 25mm holes into kerbstones, like a hot knife in butter with a rotary hammer, would have been there hours with a percussion drill
• PRO

  Geoffrey King June 2, 2012 at 10:54am

  Is that not the same wire they use for straining PVC chain link fencing?

  It normally lasts more than 2 years.

  We use 2.0mm galv straining wire and have used 1.6mm both have lasted many years.

  However it does depend on what you are trying to hold up and how exposed it is to the wind.
  
  Duncan said:

  Fit a trellis using glue. Only joking.

  We use 2'' angle iron, rawl-bolted (vertically) to the wall with holes drilled in it, then run high tensile electric fence wire through the holes and wire strainers (or gripples! they're the business but you need a straining tool http://www.gripple.com/products/catalogue/agricultural/products/gri...). None of them have fallen down yet. Doing that, you can minimise the number of fixing points to the wall without compromising strength, e.g. a length of angle iron could have two anchor points to the wall but eight anchor points for the wire.

  The biggest mistake I see over and over and over again is people using wire that is not up to par, especially that green 'garden wire', around 2mm steel with a green plastic coating (taking it up to about 3mm overall maybe), looks strong.. lasts about two years, rubbish.
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  Mark Watson June 2, 2012 at 2:10pm

  Thanks for all your rapid replies, really useful stuff. It's a house wall,cottage style.Has been painted so hard to see but looks like very hard stone ( maybe granite blocks) , the mortar seems just as tough! Have probed around for some soft spots, but seem to be very few!

  Will report back in a  couple of weeks.