I have a large Jack/Demolition hammer I use this to pound very large ground rods/stakes into the soil. These rods are those over 1” in diameter.

The largest rod driver I can find will fit 1” diameter rods. This is it. Most rod driver attachments are 3/4”. Sadly I can’t find any rod drivers that will fit rods larger than 1”! Do any of these exist? Ideally with a 1-1/8” hex shank for attaching to my jack hammer.

Alternatively, I’d love suggestions for other more DIY solutions. In the past I made a very DIY dapter for my 1” rod driver with plumbing pipe adapters to create something that fit in the rod driver but then extended out and flanged opened into a larger hole that would fit my ground rods. That worked for awhile but the weak metal in the plumbing adapters broke after a day of use. Something similar but much stronger could work as well. Here’s what that looks liked

Any ideas? Thanks!

  • What about large sockets as a DIY alternative to the plumbing adapter? Also, how big (diameter) are the rods you are driving? – UnhandledExcepSean Feb 5 '19 at 21:00
  • I use a t post driver especially if I don't have temp power yet, in the past I used a section of 2" pipe with a welded plug prior to that being borrowed from my truck, needed one and there was a farm store have used that for years. – Ed Beal Feb 5 '19 at 21:33
  • I'm curious; what's your application? How long/thick would you like your ground rods to be? – Daniel Griscom Feb 5 '19 at 21:47
  • Fence post driver to start(no ladder =no fall) then a custom built rig such as in this post. n4lcd.com/groundrod I knew one guy who got a welder to fabricate it out of steel. – user68386 Feb 5 '19 at 22:51
  • Is there a reason you want to use a ground rod that chubby, instead of some other type of grounding electrode? – ThreePhaseEel Feb 5 '19 at 23:37

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