Owen Duffy wrote in
:

Ian White GM3SEK wrote in
:

There's a potential language gap here, but "electric hammers" fall
into three broad groups. Working downward in size:

Ian,

The device I use (Hitach PH65) would be called a small electric
demolition hammer or concrete breaker (and it does not have rotation,
it is not a drill).

I should have found a URL with specs and a pic, shouldn't I?

Oh well, better late than never:

http://www.hitachikoki.com.sg/produc...ls.jsp?pid=181

It is a bit bigger than 2kg or 4kg... the machine alone is 15kg.

I should take a couple of pics of the machine, my adapter for earth rods,
and a commercial adapter for start pickets, and the thing being used to
drive 2.4m earth rod sections (which can go in behind each other with an
double tapered joiner).

I think the start picket adapter cost around A$160 from Makita, the bull
point I modified for the earth rod driver cost about A$30 and an hours
work to anneal, drill, and retemper.

Owen