@toolsbydesign: The ground ripping force of a gopher on steroids, with the precision of a scalpel. This is the @GeoRipper and it is designed to trench safely and efficiently in any dirt. Handles rocks up to 4" diameter (can discharge them from the trench while operating) Can cut through 3" roots in the ground while trenching GeoRipper 16 - 16" trench depth - $1,999 GeoRipper 20 - 20" trench depth - $2,499 GeoRipper 27 - 27" trench depth - $2,599 Kits come with 2 self sharpening cutter chains #georipper #digging #electrician #plumber #plumbing #irrigation #landscaper #poolbuilder #shed #shovel