Bosch and DeWalt make a driver bit specifically for ground rods, check
with a contractor or electrical supply dealer. I bought one from
ToolUp in Santa Clara, CA. Online at
You can probably rent the Hilti, Bosch, or Makita hammer drill from a
good tool rental shop.
Patrick Barkey wrote:
> Has anyone on this list ever tried installing ground rods in rocky soil with
> a big jack hammer drill? What I had in mind was replacing the big with the
> ground rod and driving it in. Having zero luck in this rocky stuff called
> soil in western Montana.
> I am thinking of one of those big Hilti things with a jack hammer setting:
> - Pat
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