The lower / cutter section looks a lot like a tool we have somewhere for digging clearing for clay tiles. Does the handle hinge? or is it fixed. 6 1/2" wide would be the right size for a common 4" tile. I haven't used it in a few years, bobcat with a backhoe attachment is what we use now, 65' of gray water radials, 175' of septic radials, and 45' of kitchen radials.