12mm Cylindrical Shank End Mill HSS-Co8 4-Flute Long 63mm Cutting Length DIN 844 Weldon - TECWERK

Take advantage of a robust combination of HSS‑Co 8% construction, a 63 mm effective cutting length and a secure Weldon shank for reliable milling of steel and cast iron; order via Metav Werkzeuge or consult the Metav team for further details.

End Mill DIN 844 Type N, 12 mm — Long HSS‑Co 8%, 4‑Flute, Weldon (TECWERK)

The End Mill DIN 844 Type N is a long, centre‑cutting, four‑flute cutter designed for milling steels and cast iron with high stability and secure shank clamping

• Long HSS‑Co 8% construction for durability
• 4‑flute centre‑cutting geometry
• Weldon shank with drive flat for secure clamping
• Suitable for steel and cast iron machining

Reliable high‑performance machining for medium‑strength materials

The End Mill DIN 844 Type N combines HSS‑Co 8% material with the DIN 844 long style to deliver consistent performance when machining medium‑strength materials. The tool is specified for work on materials up to ≈800 N/mm² with an uncoated cutter and up to ≈1200 N/mm² when a compatible coating is applied, which allows a clear selection of tool and process for given workpiece strengths. The combination of centre‑cutting geometry and a four‑edge configuration supports controlled entry and stable axial loads, making this cutter suitable where plunge starts and through‑cuts are required.

Secure clamping and geometry designed for predictable results

With a Weldon shank featuring a drive flat and a 12 mm shank diameter, the cutter provides positive torque transmission for rigid toolholding. The 4‑flute design balances feed capacity and surface finish, while the right‑hand cutting direction aligns with standard machining setups. The 63 mm effective length and 110 mm overall length offer extended reach for deeper pockets or taller fixtures without compromising rigidity. The specified 11.5 mm relief dimension supports controlled clearance behind the cutting edges to reduce rubbing and heat buildup during operation.

Reduced tooling interruptions and clear material suitability

This long, four‑cutting‑edge tool offers workshops a cost‑effective option where longevity and repeatability are priorities. The geometry and material pairing provide very good suitability for steel and cast iron, with limited suitability for non‑ferrous metals and stainless steel, which informs tooling strategy when a wide mix of materials is processed. The solid HSS‑Co construction improves resistance to thermal softening and flank wear compared with plain high‑speed steel, leading to longer effective service life under moderate cutting conditions. For operations requiring enhanced wear resistance or higher cutting speeds, a coated alternative may extend life further and raise the allowable material strength range.

For tailored advice on TECWERK end mills and to arrange supply through Metav Werkzeuge, please contact Metav Werkzeuge for an individual recommendation and reliable delivery from Emmerich

Technical data

• SKU: 2000866382NW
• Product type: End mill (DIN 844 Type N)
• Manufacturer: TECWERK
• Material: HSS‑Co (high‑speed steel with cobalt)
• Standard: DIN 844

Core measurements

• Diameter: 12 mm
• Overall length: 110 mm
• Effective length: 63 mm
• Cutting length: 4 mm
• Shank diameter: 12 mm
• Relief / free grind: 11.5 mm
• Number of flutes: 4

Features / Applications

• Weldon shank with drive flat
• Centre‑cutting geometry
• Right‑hand cutting
• Long design (extended reach)
• Very good for steel
• Very good for cast iron
• Limited suitability for non‑ferrous metals
• Limited suitability for stainless steel (INOX)
• Rated up to ~800 N/mm² uncoated, ~1200 N/mm² with coating

FAQ

What materials is this long four‑flute cutter best suited for?
The TECWERK End Mill DIN 844 Type N is very well suited for steel and cast iron, with limited suitability for non‑ferrous metals and stainless steel under typical conditions.

Can the cutter perform plunge cuts?
Yes, the centre‑cutting geometry allows axial plunging where required; the four‑flute construction maintains stability during such entries.

How does the Weldon shank affect clamping?
The Weldon shank provides a drive flat for positive engagement in clamping fixtures, improving torque transmission and reducing slippage during heavy cuts.

Is a coated version recommended for harder materials?
A coated tool will extend allowable material strength to approximately 1200 N/mm², so a coated variant is advisable when higher wear resistance or increased cutting speeds are needed.

What are the key dimensions to check for toolholder compatibility?
Confirm the 12 mm shank diameter, 110 mm overall length and Weldon drive flat compatibility with the chosen holder to ensure secure mounting.

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