Drill bit selection is a key element of achieving high production rates.
HDL sealed journal bearing drill bit was designed through collaboration between Inrock and Sandvik, combining years of experience and innovation. Manufactured with only the most necessary features, the HDL is a highly affordable investment. It is suitable for both medium and hard formations, delivering value without compromising on quality and performance.
HDL drill bit is designed as a durable and hard-working, yet cost-effective drill bit suitable for most HDD applications.
Inrock can assist in designing pilot hole drilling assemblies to deliver the lowest drilling cost per foot.
HDD OPTIMIZED JOURNAL BEARING
Bearing geometry optimized for the extreme side loading of long horizontal bores.
DURABLE CUTTING STRUCTURE
The HDL cutting structure is designed to be durable in a wide range of drilling conditions. Each insert is selected for shape and specified by grade to provide a cutting structure which holds a sharp profile in abrasive conditions, maximizing penetration rate.
HDD-proven compensation system provides the balance between internal and external pressures to maintain equilibrium and allow the seal to perform regardless of depth.
CARBIDE PROTECTION & LEADING EDGE HARD METAL
Tungsten carbide inserts and hard metal are selectively applied to leading edge surfaces. This provides prolonged protection to the seals and bearings in challenging horizontal applications.
The over-gage design of the HDL provides enhanced seal protection in abrasive formations. It delivers the pilot hole in the required diameter even on long crossings in tough conditions.