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
http://www.toolup.com/search/search.asp?keywords=ground+rod+driver&x=0&y=0
You can probably rent the Hilti, Bosch, or Makita hammer drill from a
good tool rental shop.
Grant
KZ1W
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:
>
> http://www.amazon.com/dp/B0036SCVSM/ref=asc_df_B0036SCVSM1071795?smid=A1QNWKKF9WDH43
>
> - Pat
> N9RV
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