The TRIO-Line series is dedicated to the turning of precision small grooves. This series offers an ideal solution with rigid teeth clamping system and very wear-resistant micro-grain carbide grades.

TRIO-Line benefits

  • A full teeth contact rigid clamping system for perfect machining quality and finishing.
  • Cost-effective inserts with three cutting edges.
  • Four cutting geometries and two high performance grades, offering a perfect solution in any situation.


  • A wide range of tool holders with square shank starting from 8×8 up to 20×20 mm.
  • Insert available with cutting width according DIN6799 and DIN471.

Machining geometries

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