STANDARD HOLE OPENERS

Atlas Rock Bit's Standard Hole Openers are designed for enlargement of pilot holes, directional drilling, and large hole applications.

Advantages

  • Integral bodies for strength.
  • Interchangeable cutters allow changing of the cutter assemblies when worn or when new formations are reached.
  • Quick-change cutter assemblies (simple pin removal on the rig floor using only hand tools).
  • Regular circulation, or 6-nozzle (3 cutter pocket, 3 wing) circulation for optimizing available hydraulics.
  • Snap-rig nozzle retention for easy disassembly.
  • Rock bit or bullnose pilot equipment available.

Cutter Availability

  • S tooth type for soft formations.
  • M tooth type for medium formations.
  • H tooth type for medium to hard formations.
  • M8 insert type for soft to medium formations.
  • H8 insert type for hard, abrasive formations.

Size Availability

Atlas Rock Bit can furnish Standard Hole Openers for hole sizes ranging from 5 7/8 in. through 26 in.

Ordering Information

  • Please specify hole size, fishing neck O.D., connection (size, type, and location of pin and box), and circulation type (regular or 6 nozzle). If 6 nozzle, please specify nozzle size and location (pockets and/or wings).
  • When ordering cutters, please specify hole size to be drilled.
  • The pilot, either rock bit or bullnose, should be ordered separately. If bullnose, specify spiral, plain or side-hill type, and with or without circulation.