Trencher: 30 in Digging Depth with 70/30 combo teeth (10-16 GPM)
Model 615 Trencher 30-inch (76 cm) boom and crumber with 29 stations, 6.0-inch (15.2 cm) x 30-inch (76 cm) chain assembly (tooth every station) with 70/30 combination shark and cup cutter teeth for clay and sand/silt soils with rocks