25mm Long HSS-Co5 End Mill TiCN Coated, 108mm Cutting Length, DIN 844 HR - TECWERK

Take advantage of the tool's HSS‑Co5 core and TiCN coating for extended wear resistance, combined with a centre‑cutting, long‑reach geometry that enables secure plunge milling and reliable results in steel and cast iron; order directly via Metav Werkzeuge or contact the consultants for application advice.

End mill DIN 844 Type HR D25 mm — HSS‑Co5 long‑reach end mill, TiCN‑coated, 4‑flute (TECWERK)

The End mill DIN 844 Type HR D25 mm is a long, four‑flute HSS‑Co5 cutter designed for milling and plunge operations in steel and cast iron where extended reach and consistent surface finish are required.

• HSS‑Co5 with TiCN coating for wear resistance
• Centre‑cutting for secure plunge milling
• Long cutting length with Weldon shank for stability
• Very good suitability for steel up to ~1200 N/mm²

Consistent high‑performance for demanding steel work

The long‑reach geometry and HSS‑Co5 substrate deliver a dependable combination of toughness and heat resistance, making this cutter particularly suited to industrial milling of medium‑to‑high strength steels. The TiCN coating reduces friction and wear, which extends tool life under continuous operation; this improves process efficiency and lowers downtime. In practical terms, users benefit from longer intervals between regrinds and more predictable tool life, which supports lean production planning.

Secure plunge cutting and reliable chip control

Because the tool is centre‑cutting, the design enables true plunge milling as well as conventional peripheral milling, so one tool can manage entry operations that would otherwise require pre‑drilling. The 4‑flute configuration balances feed rates and chip evacuation, producing a stable cutting action and a good surface finish. For those less familiar with the terms: centre‑cutting means the end geometry can cut when fed directly into the material; the number of flutes affects both material removal rate and how well chips are cleared from the cut.

Robust shank and geometry for stable clamping

The cutter features a Weldon shank with a positive clamping face, which simplifies mounting in suitable toolholders and reduces the risk of slippage under heavy axial loads. The long overall length is engineered to provide reach without sacrificing rigidity, and the tool’s relief and profile geometry support accurate, vibration‑reduced machining. The result is a stable process with reduced risk of chatter and improved dimensional repeatability for deeper cavities and stepped features.

Coating and material explained for confident selection

The combination of HSS‑Co5 substrate and TiCN surface layer is selected for tasks where toughness and edge strength are crucial while also improving wear resistance. TiCN (titanium carbonitride) offers a harder, lower‑friction surface than uncoated HSS, which is advantageous for finishing passes and sustained cutting in abrasive or adhesive conditions. For users working with a broad range of alloys, the tool is noted as very well suited to steel and cast iron, while performance in stainless, non‑ferrous metals and special alloys is conditional and should be validated against specific process parameters.

Choose the TECWERK long‑reach end mill for operations requiring reach and reliability — contact Metav Werkzeuge for tailored application advice or to arrange the order via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000866085NW
• Standard: DIN 844
• Product type: End mill (long‑reach)
• Manufacturer: TECWERK

Facts

• Diameter: 25 mm
• Overall length: 166 mm
• Effective cutting length: 108 mm
• Shank diameter: 25 mm
• Cutting edges: 4
• Cutting direction: right‑hand

Special features

• Material: HSS‑Co5
• Coating: TiCN
• Centre‑cutting (plunge capable)
• Weldon shank with clamping face
• Long‑reach geometry, DIN 844 Type HR
• Fine honed profile with 45° protective chamfer
• Very good suitability for steel and cast iron

FAQ

What materials is this end mill best suited to machine?
The end mill DIN 844 Type HR D25 mm is described as very well suited to steel and cast iron, with conditional suitability for stainless steels, non‑ferrous metals and special alloys; selection should follow process tests for specific alloys.

Can the tool be used for plunge milling into a workpiece?
Yes — the cutter is centre‑cutting, which allows secure plunge operations as well as conventional milling, so the tool can enter the material axially without prior drilling.

How does the TiCN coating affect tool life and finish?
The TiCN coating reduces friction and improves wear resistance compared with uncoated HSS, typically extending tool life and aiding surface finish in continuous milling applications.

What clamping system is recommended for this long‑reach cutter?
A stable holder that accepts a Weldon shank with a clamping flat is recommended to ensure secure clamping and resistance to axial loads for the tool’s extended reach.

How many cutting edges does the tool have and what are the benefits?
The cutter has four cutting edges; this offers a balance between higher feed rates and improved surface finish while maintaining adequate chip evacuation for many steels.

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