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Oil and gas

API chasers and chip breakers - Threading inserts for API connections in oil and gas

​​Peeling inserts for OCTG pipes

Threading inserts and chip breakers for API connections for the OCTG segment. The assortment covers both internal and external threading and comes in both API Buttress and API Round thread profiles.

Features and benefits:

  • API chasers are cutting edge, multi-tooth inserts for high volume production, for rotating head type machines and CNC lathes
  • Available in CVD-coated grade GC4325 optimized for steel machining with excellent combination of high wear resistance and edge security
  • Complementing chip breakers provide improved chip control and longer tool life for high productivity and reduced cost per component

Grade GC4325 for API chasers

  • Strong substrate for high plastic deformation wear resistance and edge-line security in wet conditions
  • Edge treatment process enhances shape and size of cutting edges
  • Coated with Inveio® technology for long tool life and maximum thermal protection
  • Improved post treatment for a secure performance


  • OCTG components
  • Typical components: API connections – pipes and couplings
  • Rotary head machines and CNC lathes
  • API chaser grades:
    • GC4325: First choice for most applications
    • P20W: PVD alternative for additional edge sharpness and for stainless steels for API Round thread form

Download ordering information

Peeling inserts for OCTG pipes

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