20mm Solid Carbide End Mill HSS-Co PM Alcrona Coated 4-Flute Long With Centre Cut Weldon - TECWERK

Take advantage of the HSS‑Co PM base material and ALCRONA coating combined with a Weldon shank and vibration‑reducing flute geometry for reliable long‑length milling of medium‑strength materials; order the end mill directly via Metav Werkzeuge or ask our consultants if needed.

End mill DIN 844 Type N, 20 mm – HSS‑Co PM, ALCRONA‑coated (TECWERK)

The End mill DIN 844 Type N is a long, four‑flute, centre‑cut cutter designed for precision face and slot milling of steels and stainless steel in workshop and light industrial settings

• HSS‑Co PM tool steel core
• ALCRONA coating for tool life
• Vibration‑reducing uneven flute division
• Weldon shank with drive flat

Predictable cutting performance for medium‑strength materials

The HSS‑Co PM substrate delivers a high fatigue strength that supports stable cutting when machining materials up to approximately 1000 N/mm², while the ALCRONA surface layer increases wear resistance and thermal stability. As a four‑flute, centre‑cut design it allows safe plunge and slotting operations with a consistent chip evacuation pattern. The result is predictable tool life and surface quality, especially where interrupted cuts or entry‑exit conditions occur; these characteristics make the cutter particularly suitable for serial workshop work and smaller production runs where repeatability is required.

Reduced chatter and improved rigidity for long‑reach milling

Vibrations are minimised through an unevenly split flute geometry that breaks harmonic excitation, so chatter is less likely even in longer overhang situations. The tapered flute root enhances overall stiffness, reducing deflection under radial loads and improving dimensional accuracy of machined features. Together these design measures enable more reliable long‑length cutting than a conventional straight‑flute end mill, supporting higher feed rates and better surface finishes without sacrificing process stability.

Secure mounting and efficient toolholding for production use

The cutter is supplied with a cylindrical shank that includes a Weldon drive flat, enabling positive axial locking in common toolholders and holders with set screws. Conforming to DIN 844 Type N dimensions and right‑hand cutting geometry, the tool fits established workshop systems and is straightforward to integrate into existing setups. The long version provides extra reach for deep pockets or stepped profiles while maintaining a familiar clamping procedure for machinists and maintenance staff.

Material coverage and application notes for selection

Application tests and specification data indicate the cutter is very good for steel, very good for stainless steel (inox) and very good for cast materials, while non‑ferrous metals and specialised alloys are listed as conditionally suitable. The geometry and coating combination favour finishing and semi‑finishing passes in steels and castings, where surface quality and dimensional control are priorities. For mixed batches, consider the tool’s material suitability ratings and plan cutting parameters to match the harder workpieces for consistent life and performance.

Contact Metav Werkzeuge for tailored recommendations, availability and to discuss clamping options for this TECWERK end mill and similar precision tools

Technical data

• SKU: 2000866051NW
• Item: End mill DIN 844 Type N, D 20 mm, HSS‑Co PM, ALCRONA‑coated, Weldon, Z4 long
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Diameter: 20 mm
• Flutes: 4
• Cutting direction: right‑hand
• Standard: DIN 844 Type N
• Max. recommended material strength: ≈ 1000 N/mm²

Special features

• HSS‑Co PM substrate
• ALCRONA coating
• Centre‑cut (plunge capable)
• Cylindrical shank with drive flat (Weldon)
• Vibration reduction via unevenly split flutes
• Improved stiffness through tapered flute root
• Very good suitability: steel, inox, cast
• Conditional suitability: non‑ferrous metals, special alloys

FAQ

What materials can this end mill machine effectively?
The TECWERK End mill DIN 844 Type N (SKU 2000866051NW) is specified as very good for steel, stainless steel (inox) and cast, with conditional suitability for non‑ferrous metals and special alloys.

Is the cutter suitable for plunge milling?
Yes, the four‑flute centre‑cut geometry allows safe plunge and slotting operations where a centre‑cutting profile is required.

How does the ALCRONA coating benefit machining?
The ALCRONA coating increases surface hardness and thermal resistance, extending tool life and improving wear behaviour during continuous and interrupted cuts.

Which shank and clamping method does the tool use?
The tool features a cylindrical shank with a Weldon drive flat, enabling secure clamping with set‑screw toolholders for axial retention in production setups.

What design features reduce chatter in long‑reach applications?
Vibration is reduced by the unevenly split flute spacing and the tapered flute root that enhances rigidity, both helping to maintain stability in long‑overhang milling.

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