20mm Long HSS-Co Solid End Mill TiCN Coating, 89mm Cutting Length, Weldon Shank - TECWERK

Take advantage of the HSS‑Co8 core and TiCN coating for extended tool life and higher cutting limits; the long DIN 844 Type N design enables deep-pocket milling with stable chip control. Order the cutter directly via Metav Werkzeuge or consult our specialists for process matching.

TECWERK DIN 844 Type N long end mill, Ø20 mm, HSS‑Co8, TiCN

The TECWERK long end mill in DIN 844 Type N format for deep milling and centre-cutting operations on steel and stainless steel.

• HSS‑Co8 with TiCN coating
• DIN 844 Type N long design
• 4‑flute geometry for fast chip evacuation
• Weldon shank with drive flat

Maximise throughput with reliable high‑alloy cutting performance

This long, centre‑cutting end mill is manufactured from HSS‑Co8 and finished with a TiCN coating, offering a combination of toughness and wear resistance that benefits high‑duty milling. The 4‑flute geometry balances cutting edge strength with efficient chip evacuation, reducing clogging in deeper cuts and enabling higher material removal rates. For production environments aiming to increase cycle counts without sacrificing tool life, the 89 mm effective cutting length and 141 mm overall length provide reach with stability, while the right‑hand cutting orientation matches standard machining directions.

Clear material suitability and cutting limits for confident process planning

Designed primarily for ferrous applications, the tool shows very good suitability for steel, stainless steel (INOX) and cast materials, while non‑ferrous metals and special alloys are conditionally supported. With the TiCN coating, the cutter can handle workpiece strength up to approximately 1,200 N/mm², whereas the uncoated condition is appropriate up to around 800 N/mm² — figures that assist in selecting the correct tool for specific batch compositions. These parameters allow planners and machinists to estimate tool life and determine whether the coated grade is required for tougher materials.

Practical design features that simplify clamping and tool changeover

The cylindrical shank with a Weldon drive flat ensures secure clamping in standard toolholders and simplifies torque transmission in heavy cut conditions. The 20 mm shank and tool diameter mean direct compatibility with common collet systems used in milling centres. The DIN 844 Type N specification guarantees dimensional conformity and interchangeability, which reduces setup time and avoids surprises during procurement. For quieter spindle loads and improved runout, ensure the holder is rated for long‑reach tooling and checked for concentricity before high‑performance runs.

Brief guidance for feeds, speeds and application

For best results, select cutting parameters that reflect the workpiece hardness and the cutter’s coated condition: increase cutting speeds and feed per tooth carefully when using the TiCN coating, and favour axial depths that keep the long shank engaged without excessive deflection. The four cutting edges allow moderate feed per tooth while maintaining surface finish. If surface roughness or tolerance is critical, prefer shorter stepovers and conservative axial depths to reduce vibration. When in doubt, trial a single pass at reduced engagement to validate performance before full production.

Discuss process parameters and delivery options with Metav Werkzeuge to specify the optimal TECWERK end mill and secure reliable supply from Emmerich.

Technical data

• Article number: 2000866412NW
• Label: Schaftfräser D844 TypN D.20mm Einsatz-L.89mm HSSCo8 TiCN Weldon Z.4 lang TECWERK
• SKU: 2000866412NW

Facts

• Diameter: 20 mm
• Overall length: 141 mm
• Effective cutting length: 89 mm
• Shank diameter: 20 mm
• Flutes: 4
• Standard: DIN 844

Special features

• Material: HSS‑Co8
• Coating: TiCN
• Weldon shank with drive flat
• Long Type N design, centre cutting
• Right‑hand cutting
• Very good for steel, INOX and cast
• Conditionally suitable for non‑ferrous metals and special alloys
• Coated condition: up to ≈1200 N/mm²; uncoated: up to ≈800 N/mm²

FAQ

What materials is this long end mill best suited for?
The TECWERK DIN 844 Type N long end mill is very well suited for steel, stainless steel (INOX) and cast materials; non‑ferrous and special alloys are conditionally suitable depending on machining parameters.

Does the TiCN coating improve performance for harder steels?
Yes, the TiCN coating on the HSS‑Co8 body raises the practical cutting limit to about 1,200 N/mm², improving wear resistance and extending tool life on harder workpieces.

What does the Weldon shank provide in daily use?
The Weldon shank with drive flat secures the cutter in the toolholder for reliable torque transmission and quick tool changes, especially valuable when machining with a long‑reach configuration.

How many flutes does the cutter have and what is the benefit?
The cutter has 4 flutes, delivering a good compromise between chip evacuation and cutting edge strength, suitable for medium to heavy milling passes.

Is the tool centre‑cutting and suitable for plunge operations?
The DIN 844 Type N configuration includes centre cutting capability, permitting limited plunge or ramping moves in addition to conventional peripheral milling.

Manufacturer/Responsible: NORDWEST Handel AG, Robert‑Schuman‑Straße 17, 44263 Dortmund