O-Flute End Mills for Plastics & Soft Aluminum

O-flute end mills are designed for cutting plastics, acrylic, HDPE, polycarbonate, soft aluminum, and other soft non-ferrous materials. Their polished cutting edge and open flute geometry help evacuate chips smoothly while reducing heat buildup, chip welding, and material melting.

  • Best for: plastics, acrylic, HDPE, polycarbonate, soft aluminum, and other soft non-ferrous materials
  • Why choose it: The polished flute and open geometry promote smooth chip flow and help reduce chip adhesion, heat buildup, and melting
  • Coating options: Available in uncoated and titanium nitride coated options. For many plastics, an uncoated polished O-flute is often preferred for clean chip flow. TiN-coated O-flutes may be useful for soft aluminum and other appropriate non-ferrous materials where added wear resistance and reduced friction are helpful
  • Common uses: Cutting, slotting, profiling, and routing plastics where edge finish and heat control matter

Single-Flute vs O-Flute — choosing the right option for plastics and soft materials →

Up-Cut vs Down-Cut — cutting direction explained →

Use the filters below to narrow results by diameter, flute geometry, plunge tip type, and cut direction to find the exact tool you need.