A rock saw isn’t a digging tool that is in every contractor’s arsenal. That is because for many conditions, it is not the piece of equipment you want to look toward.“A rock saw is probably the world’s worst dirt-digging machine,” says Bob Erickson, manager of engineering for rock saw maker River City Manufacturing in Austin, Texas. “It’s easy to run a saw through dirt, but generally the dirt will cling to the teeth when you’re running an upcutting saw. The dirt will go around and fall off the back and the ditch can be just as full as when you
