"I tried to use this to put in a small shallow well in very rocky ground. In a Word..Dont..
got down about a foot, stopped dead, moved over got down about 18" same story, moved to a third location same results.
by this time I had damaged the threads on the top of th initial shaft.
But would recommend this for you guys in fairly rock free areas, but a bolder pile that I am no, just skip all the hassle and hire a driller."
What is your level of technical expertise? Home Handyman