Given that I usually buy tools at the cheaper end of the range am I
realistic in thinking that some form of SDS drill (with rotary stop I
guess)
would assist me in finishing this job or am I barking up the wrong tree
?
Try getting a large wrecking bar under the edge. If the concrete's under
say
4", you can often lift whole sections sufficiently to whack it with a
hammer. Once you have any sort of gap under it, it breaks easily.