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Armor Drilling System — single HDD tooling system with multiple drilling options

Helps eliminate need to purchase multiple housings and tools


The Armor Drilling System from Vermeer is a single HDD tooling system with multiple drilling options designed to provide versatility and performance, and the integrated modular design allows the tooling to be adapted to various ground conditions.

“Compared to other modular systems, the Armor Drilling System offers a complete line of bit options that are easily interchangeable to adapt to varying ground conditions during a bore,” says Chris Fontana with Vermeer Corporation. “This helps eliminate the need to purchase multiple housings and tools for different applications and processes.”

A unique and patent-pending advanced bit mounting design utilizes a solid pin for bit retention and for ease in bit interchangeability and maintenance. The housing is constructed with dual water ports that deliver up to 50 gpm (189.3 L/min) at 500 psi (34.5 bar) of mud flow to effectively carry cuttings out of the bore hole.

To eliminate bolts that can vibrate loose during the drilling process, potentially causing electronics to be lost, the sonde lid is designed with a proven roll pin retention feature and is built from heavy-duty materials to minimize distortion caused by flexing.

The sonde isolation / clocking feature is designed for ease of use and provides that the electronics do not engage any metal surface helping to reduce the transfer of vibration in tough drilling conditions.

Manufactured from high quality alloy steels and machined to tight tolerances, the Armor Drilling System also undergoes a heat treating process to maximize tool life and performance.

The Armor Drilling System features four distinct bits for use in specific ground conditions:

Gauntlet™ bit — designed for use in soft to medium rock, shale, hard pan and caliche ground conditions up to 10,000 psi (344.7 bar) with exceptional steering capabilities. Carbide buttons are strategically placed on the bit for optimum cutting, and carbide hard facing helps to enhance wear and performance characteristics. A replaceable three-tooth design delivers a consistent cutting structure for steering corrections and maximum drilling performance.

Lance™ bit — intended for use in hard-packed soils and cobble. The bit features a scoop design for better steering capabilities and enhanced operator control to limit wandering in challenging ground conditions. Carbide buttons and robotically applied hard facing help improve overall bit wear in most abrasive drilling conditions.

Maul™ bit — features a similar scoop design found in the Lance bit that offers improved control and performance characteristics, but is a more economical option with an enhanced carbide hardface structure, less the carbide buttons.

Standard™ bit — offers the flexibility to run one of many different plate bit offerings helping to limit tool wear of your other bits in certain ground conditions.

Vermeer offers a convenient and economical bit re-manufacturing program to help minimize cost per foot (meter) expenses. The Armor Drilling System is also available in 2- and 4-battery sonde lengths and is wire line compatible.