The durability of premium tungsten carbide inserts is improved with new formulas and techniques. Wear-resistance is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bits.
Multiple gauge protection with trimmers on heel and inserts on the cone surface. Tungsten carbide inserts and hardfacing on the shirttail increase gauge holding capability and bearing life.
High precision bearing with two thrust faces. Balls lock the cone. Cone bearing inlaid with friction-reducing alloy and silver-plated for high rotary speed suitability and seizure resistance.
Advanced metal seal package consists of two metal seats and two elastic energizers. This ensures reliability and durability of the bearing seal. The pressure compensator system and advanced grease greatly increase lubricating reliability.


Established in 2003, we are located near the second largest oilfield in China. Our business scope includes professional oilfield equipment supply, such as drilling equipment and spares, wellhead equipment, and oil recovery equipment.
With over 19 years of experience, we have established solid partnerships and a network with quality OEM factories. Based on our responsive and responsible engineering and commercial team, we provide one-stop shop services and package procurement plans that add value in terms of delivery time and fair pricing.