One pump is devoted to drill pipe rotation another to pullback and thrust and a 3rd to drilling fluid-which amounts to ideal hydraulic flow at all times. -A single lever operates both thrust and rotation functions lowering operator fatigue. -Electronic system with tracker control enables the tracker operator to disable power to the drilling unit's drive and rotation. -Choice of a wide range of drilling bits backreamers and service line pulling devices. the JT921 is a Fiber-to-the-Home contractor's dream. the power and enhanced hydraulic systems of the JT921 enables it to drill faster than any other HDD device in its class. -Fluid Miser drill pipe utilizes less drilling fluid general which implies less jobsite mess and cleanup. -One-step anchoring system offers quick setup. Dull/ Drilling Machines Boring Machines 4192 PSN. -Pipe lubrication system is controlled by a foot pedal at the operator's station simplifying drill pipeline upkeep. the JT921 does it all: powers itself and carries its own drill pipeline and drilling fluid. ESSENTIAL FEATURES: -Outstanding horsepower (50 hp/77 kW) and hydraulic power offer the fastest cycle times of any units in their class resulting in a higher number of FTTH gas water or phone service installations daily. 2007 Ditch Witch JT921 JT 921 Trailer & & Mud Mixer This previously owned drill comes with 160' of drill pipe tandem axle trailer FM5 mixer with 300 gallon tank housing and bit. -Designed to make brief- to medium-length service line installations with pilot burns out as much as 4 inches (102 mm) and backream diameters up to 12 inches (305 mm) depending on soil conditions ...

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