Best Digging Machines
Trenchers are available in many different types and sizes, from small walk-behind models to full-size trenching machines that cut into asphalt pavement and other hard surfaces. ... Type B soil: Includes cohesive soil with an unconfined compressive strength greater than 0.5 tsf (48 kPa) but less than 1.5 tsf (144 kPa) and granular …