16mm Cylindrical Shank Long Roughing End Mill 73mm Cutting Length TiCN Coated HSS-Co8 DIN 844 - TECWERK

Take advantage of a combination of HSS‑Co8 substrate, TiCN coating and a long cutting length for reliable deep‑reach milling and extended tool life; order the tool directly via Metav Werkzeuge or consult the in‑house specialists for application advice.

TECWERK D844 Typ N 16 mm HSS‑Co8 End Mill — TiCN coated, long reach, 4‑flute

A TECWERK D844 Typ N end mill designed for precision milling of medium‑strength steels and stainless materials, offering long reach and centre‑cutting capability for plunge and peripheral operations.

• HSS‑Co8 material for high heat resistance
• TiCN coating for extended tool life
• Long design with 73 mm effective cutting length
• Weldon shank, 16 mm diameter

Consistent metal‑cutting performance through standardised geometry

Constructed to DIN 844 specifications, this long 4‑flute cutter pairs a cobalt‑alloy high‑speed steel core with a geometry tuned for repeatable chip formation and dimensional control. The HSS‑Co8 substrate provides improved red‑hardness and toughness compared with standard HSS, which translates into stable cutting in interrupted and continuous cuts. The design supports milling of materials up to approximately 800 N/mm² with an uncoated tool and up to 1200 N/mm² when the tool is TiCN‑coated, giving a clear performance advantage in workshops processing varying steel grades.

Long reach and secure clamping for deeper slots and pockets

The tool’s 73 mm effective cutting length and 123 mm overall length enable access to deeper features without resorting to extensions. A Weldon shank and 16 mm shank diameter ensure reliable torque transmission and secure clamping in toolholders, reducing the risk of slippage during heavy engagement cuts. Centre‑cutting capability permits safe plunge passes while the right‑hand helix orientation and flute geometry sustain efficient chip evacuation, supporting consistent surface quality and dimensional accuracy on deeper profiles.

Coating that reduces friction and extends service intervals

The TiCN surface finish adds a harder, lower‑friction layer that reduces built‑up edge formation and enhances thermal resistance at the cutting edge. This results in extended tool life and more stable performance under elevated cutting temperatures. For manufacturers seeking predictable tool replacement intervals and fewer changeovers, the coated variant provides measurable gains in uptime and process economy while maintaining the cutting edge integrity required for tight tolerances.

Practical application guidance and material suitability

Engineered as a versatile long‑reach cutter, the tool is particularly effective on steel, stainless steel, and cast iron, and is a sound choice when machining components with medium tensile strength where a combination of reach, rigidity and surface finish is required. The cutter is right‑hand cutting and features centre cutting for multi‑directional use. For non‑ferrous metals and specialised alloys, performance is conditional; tool selection should reference material specifics and machining strategy to match expected outcomes.

For workshop reliability and stock availability of the TECWERK D844 Typ N end mill with TiCN coating, contact Metav Werkzeuge in Emmerich at info@metav-werkzeuge.com or +49 2822 7131930 for tailored advice and supply options

Technical data

• SKU: 2000866408NW
• Standard: DIN 844
• Designation: D844 Typ N, long, 4‑flute, Weldon shank

Facts

• Diameter: 16 mm
• Overall length: 123 mm
• Effective cutting length: 73 mm
• Shank diameter: 16 mm
• Number of flutes: 4
• Free relief / relief length: 15 mm

Special features

• Coating: TiCN
• Material: HSS‑Co8
• Centre cutting (plunge capable)
• Right‑hand cutting
• Weldon shank with drive flat
• Suitable for steel, stainless steel and cast iron (very good); non‑ferrous and special alloys (limited)

FAQ

Is this cutter suitable for plunge milling?
Yes. The D844 Typ N is centre cutting, which allows plunge milling as well as peripheral milling while maintaining stable chip formation with the designed flute geometry.

What materials is the cutter best for?
The cutter achieves very good results on steel, stainless steel and cast iron; performance in non‑ferrous metals and special alloys is conditional and should be evaluated per application.

What advantage does the TiCN coating provide?
TiCN reduces friction at the cutting edge and increases heat resistance, which typically results in longer tool life and more consistent surface finish during extended operations.

How does the Weldon shank benefit the process?
The Weldon shank provides a secure mechanical clamping surface for high‑torque operations and reduces the risk of tool slippage in the holder, improving repeatability in demanding cuts.

Which standard and type does this cutter conform to?
This cutter conforms to DIN 844, Type N, indicating standardised geometry for long‑reach milling cutters suitable for various industrial applications.

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