I would like to thank all those who have replied to my earlier question
I'm afraid my brain does not like inconsistency - and technical term always puzzle me until resolved. However, I have gate post to fix I've no idea of the type of brick the post is affixed. Although an SD drill would seem to be the better option, I think my budget will onl stretch to a "mid-range" hammer drill, unless I can an SDS in a sal (any particular brand? I was told that RYOBI were reasonable).
AK
-- akmirza