Drill String Accessories

Pup Joints

A pup joint, also known as a saver sub, spacer, or pup, is a compact casing or tubing component essential for managing production tubing assemblies and maintaining proper spacing within complete tubing and casing strings. Our pup joints come in a variety of size ranges, from 2-7/8″ to 5″, and are available in multiple thread configurations, including HT, IF, XT39, and GPDS50. These options ensure that our pup joints are compatible with a wide range of equipment and can be seamlessly integrated into your oil and gas operations.

Cross Over Subs

Crossover subs are essential in drilling & workover operations, bridging the gap between equipment with different sizes or threads. They offer adaptability, facilitate repairs, and enhance connections, ensuring the success of drilling projects. Explore our extensive range of crossover subs, available in sizes from 1″ to 7-5/8″, and a wide array of thread configurations, including AOH, AMMT, PAC, HT PAC, SFJ, REG, IF, NC, EUE, XT, NPT, HXT, CDS, and BTC, to meet your specific needs.

Float Subs

Discover the pivotal role of float subs in oil and gas drilling operations. These specialized components serve multiple critical functions, including fluid control, buoyancy management, pressure equalization, and enhanced drilling efficiency. By maintaining one-way valves, float subs prevent backflow of drilling fluids, ensuring well integrity and preventing blowouts. They also facilitate the management of hydrostatic pressure, allowing trapped air or gas to rise, reducing drill string density. Explore our range of float subs, available in sizes from 2-3/8” to 7-5/8”, and featuring various thread configurations, including REG, EUE, HT PAC, IF, and NC. Trust our float subs to optimize your drilling operations, ensuring safety, efficiency, and fluid dynamics control in the wellbore.


Our stabilizers are essential tools in the drilling assembly, providing impeccable borehole stability, reducing deviations and vibrations, and ensuring precision during drilling and workover operations. Choose from a range of types, including Integral Blade String (IBS), Integral Near Bit, and Drilco Ezy Change, with sizes ranging from 2-3/8” to 15-7/8”. Our stabilizers offer various thread configurations, including REG, IF and NC.

Experience these benefits

  • Optimal Borehole Stability
  • Improved Drilling Efficiency
  • Enhanced Workover Operations
  • Extended Tool Life
  • Precise Reservoir Placement
  • Enhanced Safety

Lift Subs

A lifting sub, a specialized tool essential in the oil and gas industry and geological exploration, plays a pivotal role in hoisting drilling equipment to the surface. Resembling a pup joint, this compact component connects the upper end of the drill string, enabling effortless lifting using an elevator. At Hofco Oilfield Services we stock a size range spanning from 2-7/8” to 8” and featuring thread configurations such as HT PAC, IF, REG, NC, XT, and TSWP. Lifting Subs guarantees the secure and efficient handling of tools reliant on drill pipe elevators for seamless operations.

Stabbing Guides

A stabbing guide is an essential tool used in the energy industry to align two distinct sections of drill pipe, tubing, or casing for a seamless male-to-female connection. This uncomplicated yet crucial device accelerates and simplifies the stabbing process while safeguarding threaded connections from potential damage. Available in a range of sizes from 2-7/8” to 8-1/8” and compatible with various thread configurations like HT PAC, XT, IF, REG, and EUE, our stabbing guides are designed to meet the specific needs of your operation.

Thread Protectors

In the world of oil and gas, the integrity of threaded connections is paramount. Thread protectors are the unsung heroes, preserving the crucial threads on pipes, casings, and drill strings. These unassuming yet essential components shield your equipment against damage, corrosion, and contamination during transportation, storage, and assembly. With a comprehensive size range from 1″ to 7-5/8″ and an extensive selection of thread configurations, including AOH, AMMT, PAC, HT PAC, SFJ, REG, IF, NC, EUE, XT, NPT, HXT, CDS, and BTC, our thread protectors are the key to maintaining the longevity and performance of your investments. Trust in thread protectors to keep your operations running smoothly and your industry thriving.

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