The ReedHycalog®'s TuffDuty series of roller cone bits provides a tougher bearing system combined with several durability enhancing features. These products are specifically designed to meet the requirements of drilling operations where bit durability is a major objective. Key design aspects of this bit series include a tougher bearing system, improved cone and insert retention technology, advanced hydraulics, enhanced gage durability and new high-performance hard-facing for tooth bits.

The TuffDuty series incorporates a larger journal bearing design for greater durability. The bearing uses an optimized cone retention system. In most cases this is the unique Threaded Ring.
7 7/8” (200mm) TuffDuty bits use an encapsulated ball design due to specific geometric considerations.

TuffDuty bits feature the MatchFit™ insert retention system. The MatchFit system is a patented machining and installation process that enhances insert retention by increasing contact between the insert and the cutter shell.

TuffDuty bits maximize gage durability by placing more tungsten carbide inserts in the gage area of the bit. Softer formation designs use GageGuard™ inserts to protect gage inserts from impact damage and hole wall abrasion. Harder formation designs use TuffGage™, which places significantly more tungsten carbide on the heel row.

TuffDuty bits are available with either Mudpick® or Mudpick® II hydraulics. Selection can be optimized to suit your specific application. Mudpick II is designated with a "M" suffix in the product name.