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A sonde housing that's used for boring in rock has to be tough - really tough.
Design Features

The INCREDIBIT® sonde housing is manufactured from the finest alloy steel available which virtually eliminates over-flexing, bending, or cracking.

Tri-lock Door
The patented Tri-Lock side load housing door is tooled from pre-hardened steel, and offers strength and durability along with security to keep your valuable transmitter where it belongs - in the housing.

Electronics Friendly
The INCREDIBIT® housing is designed with sonde blocks which absorb vibration and save wear on your sonde's locating keyway. This system holds the sonde securely in the housing which results in less vibration, a more reliable signal, and increased battery life.

The INCREDIBIT® sonde housing was developed with repairability in mind. Our sonde housings are assembled with a main body and a housing saver. If the threads on the housing saver get damaged, the housing saver can be replaced without having to replace the entire sonde housing.

Endurance Housing

While the Endurance housings are designed specifically for the Endurance bits, they incorporate many of the most popular features of our INCREDIBIT® housing, but at a much lower cost. We've used the Tri-Lock door and sonde blocks to protect the transmitter. We also use housing savers so, if the threads get messed up, you don't have to buy a whole new housing. We believe the Endurance housings will outlast any other dirt housing that's on the market today.


The INCREDIBIT® not only drills and steers in difficult formations, it is also designed to stand up to the rigors of boring in tough conditions. Railhead has an extensive Dealer network as well as Factory Reps available to help you if you have a difficult bore.

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