20mm Solid Carbide End Mill HSS-Co PM Alcrona Coated 4-Flute Short Weldon 45° Chamfer DIN 844 HR - TECWERK

Take advantage of the combination of HSS‑Co PM toughness, ALCRONA coating longevity and a secure Weldon shank for uninterrupted production. Order the end mill directly via Metav Werkzeuge or contact our consultants for application advice.

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

The End mill DIN 844 Type HR Ø 20 mm is a short, four‑flute HSS‑Co PM cutter with ALCRONA coating, designed for stable finishing and reliable performance in demanding steel and stainless‑steel applications

• HSS‑Co PM substrate for high toughness
• ALCRONA coating for extended tool life
• 4‑flute short design for stable finishing
• Weldon shank with drive flat for secure clamping

High‑performance materials for consistent component quality

This cutter combines a HSS‑Co PM (powder‑metallurgy high‑speed steel) substrate with an ALCRONA coating conforming to DIN 844 to deliver a balance of toughness and wear resistance. The material pairing is particularly suited to machining steels and stainless steels with tensile strengths up to ~1400 N/mm², where resistance to chipping and thermal loads determines part consistency. The metallurgical design reduces unexpected tool breakage and supports predictable process planning in series production.

Chip control and surface finish with a short, four‑flute geometry

A 4‑flute geometry in a short overall length improves axial stability and promotes even chip evacuation in interrupted or light finishing passes. The cutter’s centre cutting capability allows limited plunging operations, while the short cutting length supports low‑vibration milling on small bores and shoulder features. The conical flute root enhances rigidity, which translates into improved surface finish and reduced need for rework on precision components.

Secure clamping and reliable concentricity for repeatable runs

The tool features a Weldon shank with drive flat, ensuring positive drive and minimised slippage in toolholders; this is particularly valuable when repeatability and run‑out control are required. Right‑hand cutting direction and a protective 45° chamfer at the cutting edge reduce the risk of edge damage during tool change and handling. Together these elements sustain machining accuracy across multi‑shift production.

Application range and material suitability explained

Engineered for demanding environments, the cutter is very well suited to steel, stainless steel (INOX) and cast iron, while non‑ferrous metals and some special alloys are indicated as conditionally suitable. The specification supports operations where component tensile strength approaches 1400 N/mm², offering a practical option for small‑batch and shop‑floor work where toughness and wear resistance are prioritised over carbide economics.

Operational benefits and process efficiency

The ALCRONA coating and HSS‑Co PM core extend usable tool life and maintain cutting edge integrity under higher temperatures, lowering the frequency of tool changes and increasing uptime. The short tool overhang and robust flute geometry contribute to reduced chatter and allow higher feeds with controlled surface quality. For production planners this means fewer interruptions and a more predictable machining cycle time.

For application recommendations or to secure the TECWERK end mill for production use, contact Metav Werkzeuge for tailored advice and ordering support.

Technical Data

• Article number: 2000866065NW
• SKU: 2000866065NW
• Product type: End mill (short)
• Brand: TECWERK

Facts

• Diameter: 20 mm
• Shank diameter: 20 mm
• Overall length: 104 mm
• Effective length: 52 mm
• Cutting length: 4 mm
• Number of flutes: 4
• Relief / clearance: 19 mm

Special features

• HSS‑Co PM substrate
• ALCRONA coating
• DIN 844, Type HR
• Four‑flute, short design
• 45° protective chamfer
• Centre cutting geometry
• Cylindrical shank with drive flat (Weldon)
• Right‑hand cutting direction
• Suitable up to approx. 1400 N/mm² tensile strength
• Improved rigidity via conical flute root
• Material suitability: steel very good, inox very good, cast iron very good, non‑ferrous metals conditional, special alloys conditional

FAQ

What materials is this cutter best for?
The TECWERK end mill is very well suited to steel, stainless steel and cast iron; non‑ferrous metals and certain special alloys are conditionally suitable.

Can the tool plunge or is it only for peripheral milling?
With its centre‑cutting geometry the cutter permits limited plunging operations in addition to peripheral milling.

How does the ALCRONA coating benefit production?
The ALCRONA coating increases wear resistance and thermal stability, extending tool life and reducing downtime for tool changes.

Is the Weldon shank compatible with standard toolholders?
Yes; the Weldon shank with drive flat ensures secure clamping in compatible holders, reducing slippage and improving repeatability.

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