Subs

All Subs are manufactured from 4140, 4145,or 4130 M7 drill collar bar material, which saw cut to length and is atmospheric heat treated to API Spec 7-1 after boring, this insures an excellent through wall heat treatment.
 
Subs of any type or threads can be provided to our customer to meet their particular needs. Subs can be supplied from 12" OAL to 48" OAL, with reduced sections or straight OD.

Features: 
  • Cross-Over Subs
  • Saver Subs
  • Test Subs
  • Bottleneck Subs
  • Top Drive Subs
  • Lift Subs
  • Lift Nubbins
  • Bit Subs
  • Float Bore Subs

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8909 Jackrabbit Road ∙ Houston, Texas 77095 ∙ 281.855.3200