I just have to chime in after using my new ground rod driving attachment for the first time today. I drove 2 ground rods (5/8) in less than ten minutes. And I'm talking old slab construction (no backfill) in the Arizona desert where the ground has been likened to a poor grade of concrete! It was sweet! This job could take over an hour with a sledge hammer plus leaving you with mushroomed ends. I'm using a Bosch demolition hammer and the attachment was $69.00 and worth every penny! (It actually took longer to scoop out the 3 inch deep recesses than it took to drive the rods). If any of you have ever worked in desert terrain you will know what I am talking about.
Brian
