The patented RQ® rods feature a combination of exclusive heat treatments and innovative engineering to provide the ultimate in performance and longevity. RQ® drill rods expand your drilling capabilities and lower your total drill rod cost per meter/foot in deep, deviated and demanding wireline coring applications.
TUBING
- High quality alloy steel tubing
- Consistent concentricity, straightness and heat treatment
- Parallel wall tubing in standard DCDMA sizes
THREAD DESIGN
- Course RQ® threads (3 threads per inch) with increased taper, provide easier make and break as well as anti jamming in standard DCDMA sizes
- Finer RQ®TK threads provide high performance for Thin Kerf wireline systems
- Load efficiency of 50% provides ultimate strength for demanding applications
THRU-WALL HEAT TREATMENT
CASE HARDENING
- Boart Longyear is the only manufacturer in the industry to case-harden threads
- Significant research, development and field testing has resulted in a hardening process that is unmatched in the marketplace
- Pin thread crest is hardened to nominal 55HRc to eliminate damaging ‘adhesion’ wear
- Eliminates the transfer of wear material back and forth which is what happens between threads of equal hardness, leading to large scale galling and joint seizing
