lighthouse, mate,welcome to ECN.
What a huge idea that is, best I've heard yet,what sort of tip do you use for this?.
How prevalent is the Hilti in the US?, they are pretty big over here(NZ), for the serious contractors, we have Core-bits and all sorts of other attachments, but none to drive an Earth Rod.
Was the Hilti, an American invention?, just curious?, one thing I must say I'm glad that someone invented it.
It makes life so easy.
Let's face it, these days if you're not young, you're old - Red Green