Optimizing the load distribution and contact area through the tapered profile, the DriftMaster thread geometry is designed to maximize resistance to wear under the harshest drilling conditions.

Combined with the wear resistance associated with carburizing heat treatment, the DriftMaster thread geometry is proven to outlast.

To further improve productivity, the tapered thread profile offers superior rod-bit make-up and breakout characteristics. This key thread feature results in more drilling time.

DriftMaster is being introduced in 35mm hex cross-sections for use with standard, Retrac, and Straightrac button bits from 43mm – 64mm. The initial offering includes dome and pilot reamers – including optional RazorBack, a patented high-productivity back-reaming bit for quicker and easier mine expansion.

Contact your Boart Longyear representative for additional options.

Ideal for narrow-vein applications. With a small footprint and tramming capability, the StopeMaster is compact enough for cage transport, level-to-level mobility and optimum maneuverability in confined areas.

Utilizes a proven hydraulic rock drill for high productivity and deep accuracy. Incorporates the Hercules Rod Mate Centralizer for positive centering and simple operation.

Efficient dismantling and re-assembly enables faster move times and increased productivity.

The Helac Positioning System provides full 360° radius drilling with extreme accuracy. Capable of parallel drilling, ring drilling, service holes, drop raises, and cable bolting. Uses dual in-line hydraulic feed cylinders to provide balanced thrust to the drill string center.

Capable of more drilling patterns than any other platform on the market. Pivoting traverse feature allows straight, accurate drilling. Hydraulic rotation of rock drill carriage adds further flexibility of drilling patterns.

Designed to bring maximum benefits in a compact, mobile package.

Modular design with efficient dismantling and reassembly. The StopeMaster can be transported rapidly, even into captive areas, decreasing move time and increasing productivity.

Excellent deep hole accuracy, through the superior guidance of the durable feed system and Hercules centralizer.

Consistent, high performance regardless of varying operator skill levels or conditions.

Increased availability since routine maintenance can be done at the face, by operators without specialized training.

Longer intervals between scheduled preventative maintenance servicing, proven through millions of feet of drilling experience.

Can be transported rapidly even into captive areas, decreasing move time and increasing productivity.

High performance drilling regardless of varying operator skill levels or conditions. Decreased maintenance costs with routine maintenance being done in the stope and increased time between scheduled preventive maintenance.

Long hole rods are available in male‐male and male‐female options.

Drilling with the minimum possible hole deviation is important for more consistent fragmentation, increased efficiency, and reduced operational costs.

The male‐female design configuration eliminates the need for a separate coupling, resulting in fewer threaded connections, reduced hole deviation, and faster additions/removals to the drill string.

Long hole rods are available in a wide range of diameters and threads with lengths up to 21 ft.

Advancing to tube rods means a greater cross sectional area, increased stiffness, and a further reduction in hole deviation.

Guide rods and guide tubes are available to provide further stability and drilling accuracy.

Numerous design configurations are available including Boart Longyear’s DriftMaster series.

Tunneling/Drifting rods are available in lengths up 21 ft (6.4m) with hex or round cross sections (25H, 28H, 32H, 35H, 39R) featuring thread sizes up to R38 and HM38.