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​Grooving cutter CoroMill® 329 adds speed and feed capability to groove milling thanks to the rigidity of CoroCut® V-rail interface plus the economy of CoroCut® two cutting edges.


  • Inserts are absolutely securely mounted with Corocut insert clamping
  • High productivity due to many inserts in the cutter
  • Low cutting forces


  • Arbor or Bore with keyway mounting
  • Positive geometry
  • Insert geometries and grades for all materials apart from ISO H
  • Wiper insert for improved surface finish
  • Tailor made offer available for inserts


  • Groove milling up to 18 mm (0.709 inch)
  • Parting off
ISO application area



  • First-choice geometry is -CM
  • If chip control needs to be further improved, use -TF
  • First-choice grade is GC1125, the all-round grooving grade for all materials and general conditions. Its fine-grained carbide with thin PVD coating has proved its performance in all kinds of grooving applications
First choice for all materials is the
-CM geometry 
Good chip control and surface finish due to the wiper design


CoroMill 329

The CoroCut V-rail interface gives exceptional stability. Rotational speed can be multiplied with maintained tolerances and surface quality.

Product range

Diameter range, metric: 100–160 mm
Diameter range, inch: 4.000–6.000 inch
Groove width 2.0–5.0 mm (0.079–0.197 inch)


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