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T-Max Twin-Lock is designed for threading in the oil, gas, and related industries, primarily in areas of high volume, such as tubing, casing, and coupling production.

The T-Max Twin-Lock system also covers connection threads where indexing accuracy, reliability of insert edge, and repeatability are essential.


  • Sharp cutting edges for high quality threads
  • Insert geometries and grades for all materials apart from ISO H
  • Thread profiles for API Round Vee and API Buttress​​


​T-Max Twin-Lock is a system that well suits the wide and varying aspects and requirements of the oil related industry, primarily for use in the high volume area of tubing, casing and coupling production.

Tool joint and rotary shouldered connection threads are also covered by the system where the excellent indexing accuracy, security of edge and repeatability are ideally suited to the modern production units.

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