Hepyc HSSE End Mill DIN 844NRF

The Hepyc HSSE End Mill DIN 844NRF is a short-series cobalt high speed steel (HSSE) milling cutter with TiAlN coating, designed for fine roughing operations. Featuring a 30° helix and 4 cutting teeth, it offers improved wear resistance, higher heat stability, and consistent cutting performance in demanding machining applications.

The TiAlN coating enhances tool life and allows higher cutting speeds, while the straight cut geometry and short-series design provide increased rigidity and reduced vibration during machining.

Product Details

• SKU: 31191000160
• Material: Cobalt High Speed Steel (HSSE)
• Standard: DIN 844NRF
• Series: Short series
• Helix angle: 30°
• Cutting edges: 4 flutes (z ≥ 4)
• Geometry: Straight cut
• Coating: TiAlN
• Application type: Fine roughing operations

Applications

Suitable for soft magnetic steels, construction and cementation steels, and non-alloy and alloy carbon steels up to approximately 1,100 N/mm².

Recommended Cutting Speed (Vc)

The following cutting speed ranges are indicative starting values and should be adjusted based on tool diameter, machine rigidity, coolant use, and cutting conditions.

• P – Steels
  • >800 N/mm²: 30–50 m/min
  • >1,000 N/mm²: 40–45 m/min
• M – Stainless steels
  • >950 N/mm²: 25–35 m/min
• K – Cast irons
  • >500 N/mm²: 55–60 m/min
  • >800 N/mm²: 20–38 m/min
• N – Non-ferrous metals
  • Cu alloys: 60–120 m/min
• S – Titanium & Nickel alloys
  • 25–35 m/min

Notes

• TiAlN coating improves heat resistance and tool life in high-load applications.
• Short-series design enhances rigidity and surface stability during roughing.