Rotary Percussive Subs are intended to take the brunt of the harsh drilling conditions that are found on the job site. Our Subs are manufactured from 4140 Q&T Alloy, a hardness of 28-32 RC can be found on each one. Threaded on CNC Lathes and heat treated to maximize their strength and durability – Save your Drill String, use DPI Sub Savers! In addition to subs, we manufacture Flushing Bells and Balance Rods per your specification.
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| Cross Over Sub | Casing Saver Sub |
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| Drill Pipe Saver Sub | Flushing Bell |