Incredibit Sonde Housing – 3.5″ O.D. x 2.375″ API (B)


Railhead Housings and Rock Bits incorporate the patented ‘Stress Relief Structure’ with the “key and keyway” design to take much of the side stress off the bolts. This reduces tool loss due to bolts breaking. The newly designed rounded door incorporates another patent with the “Door Hold Down Tabs”. Simply drop the door in place, slide it back and install the bolts in front of the door. Housings require a Housing Saver which connects to the drill rod or quick connect system being utilized


Engineered to drill through tough rocky conditions. The first tool designed for HDD rock drilling is often imitated but never duplicated. The special cutting action typically allows for steering corrections to be made in half the time as other tools.

Additional information

Housing Type

Rock Housings

Astec Model

DD3, DD3238, DD4

Case Model


Ditch Witch Model

JT2720, JT2720AT, JT2720M1, JT30, JT3020, JT3020AT, JT3020M1, JT3030M1, JT30AT

Toro Model


Universal Model

UNI24X40, UNI36X50

Vermeer Model

D24X40, D24X40A, D24X40S3, D24X40SERIES II, D33X44, D36X50, D36X50 SERIES II


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