Ground Hog T-4-HS4 Honda Trencher with 12" Shark Teeth and 4" Trench Width - This Trencher is easy to use and has operator-friendly controls. It will trench close to walls and fences and fits through narrow gates and doorways. A centrifugal clutch is equipped with needle bearings and all metal drum and shoes. The unique wheel ratchet system assists the operator in propelling the T-4 while trenching.