Metric Casing

Made from cold drawn seamless tubing grade metric casing is designed to be used in conjunction with the metric core barrels, TT, B, T2, T6 series and dynamic sampling tooling.

It is used in exploratory drilling to keep the formed borehole open for several reasons:

  • To maintain sample quality
  • Improve productivity
  • Keep the borehole open while it is being drilled
  • Stop cross contamination
  • Stop ground water ingress
  • Install instrumentation


  • Geotechnical investigation
  • Environmental investigation
  • Geothermal


  • Made in the UK
  • Sizes 56 to 146mm
  • Flush threaded
  • Dimensions in accordance with BS EN 22475: Part 1
  • 0.5m, 1.0m, 1.5m and 3.0m lengths
  • Steel grade ST 52
  • Geothermal
  • Water wells
  • Overburden drilling to rock head