Grundomat features a patented reciprocating chisel head with stepped-cone design that enables it to break through rocky soil without straying from its trajectory. The result is a neat, clean bore that is on target every time. The threat of a run-away bore is virtually eliminated, saving both time and money. It is easy to set up and operate. Direction can be reversed with a simple turn of the air hose.

The following models and parts are readily available from Georgia Underground: