Texas_Signmaker
Very Active Signmaker
We use that demo hammer whenever we have to go down to Homestead or Florida City along with a generator in the truck bed. The ground down there is pretty much like concrete. As a matter of fact, there are several quarries where they dig up the rock, crush it, and use it in concrete.
First few times I installed signs down there using a breaker bar and posthole diggers (1) 24" deep hole took me well over an hour. I actually gave up installing down there but my biggest customer basically begged me to take up the work again as they could not find anyone reliable in that area. We currently drive 150 miles EACH WAY for them whenever they have something to install down there. I could not dream of doing so without that demo hammer. The ground is so bad, we bought Razorback Post Hole digger at Home Depot with the lifetime guarantee. I believe we are on at least our 10th one now, having only bought two or three
https://www.homedepot.com/p/Razor-Back-48-in-Fiberglass-Handle-Post-Hole-Digger-78006/100163896
I'll have to give the demo hammer a shot. I have two of those razor backs and they are the best post hole diggers I've ever used.