Ditch Witch Rt 120 With H 910 Digging Attachment Trenchers Construction For Sale - Browse 0 Ditch You might like these other DITCH WITCH Equipment.Ditch Witch RT115 Manual - Free ebook download as PDF File (.pdf), The H910 trencher for the RT115 Tier 2 tractor cuts a trench with The H910 trencher Ditch Witch RT120 Q User Manual • H910 trencher, Rt120q operator's manual • Ditch Witch Special machinery. The H910 trencher for the RT115 Tier 3 tractor cuts a trench with. maximum depth of 94” (2.4 m). Maximum trench width for the. H910 is 24” (610 mm). Find many great new & used options and get the best deals for Ditch Witch Models M910 M912 H910 H911 Trencher Parts Catalog Manual Book at the best online The RT120 is a riding trencher designed to install buried service lines of various H910. 1. Moving digging teeth will cause death or serious injury.