Ditch Witch recently announced its largest trencher ever — the 220-hp HT220. This new hydrostatic trencher, designed to work in both dirt and rock, can dig from 12 to 24 inches wide, and from 4 to 8 feet deep. According to the company, the new HT220’s gearbox delivers exceptional power to the attachment, while protecting the hydraulic system and other components from shock. Stabilizers further help to isolate vibration when the machine is working in rock.