The staged TCI(TCR) cone hole opener incorporates precision-engineered cone structures to ensure fast, smoothly drilled in trenchless application, high-quality, concentric hole opening under a wide range of oil drilling application. TCR HDD tools are run successfully on rotary and rotary steerable assemblies in both straight and deviated holes. 

A range of milled tooth and tungsten carbide insert (TCI) cutting structures are available for a variety of formation conditions. The fixed-diameter hole opener is available in sizes 6 1/4 to 42 in, with hand-tool demountable cutters that are easily replaced .  The robust design and construction enable drilling of longer intervals.