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A Tough Drilling with Casing (DWC) Connection


  • Converts your API Buttress, STC or LTC, to a high torque superior connection. No need to purchase expensive premium pipe in advance.
  • Rugged 90 deg. Shoulder prevents further down-hole make-up torque while rotating in the hole.
  • FCR rings can be easily transported to any location and inserted in the coupling box on the pipe in the field with supplied insertion tool.
  • API Buttress, STC and LTC pins can be cut at almost any machine shop world wide.
  • The FCR Torque rings ensure multi – tripping capabilities with 100 percent pressure containment.
  • An excellent connection for operators who wish to use the Drilling with Casing (DWC) techniques.
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