18mm Cylindrical Shank HSS-Co8 TiCN Long D844 Type N 4-Flute End Mill, 73mm Cutting Length, Weldon - TECWERK

Take advantage of the combination of HSS‑Co8 material, TiCN coating and a centre‑cut 4‑flute geometry for reliable long‑reach milling in mixed industrial workshops; order directly via Metav Werkzeuge or contact our consultants for application advice.

End mill D844 Type N – 18 mm, HSS‑Co8, TiCN (TECWERK)

The End mill D844 Type N 18 mm is a long, centre‑cut industrial cutter in HSS‑Co8 with a TiCN coating and Weldon shank, designed for productive milling of steel and stainless steel in workshop and production environments

• HSS‑Co8 for high‑temperature resistance
• TiCN coating for extended tool life
• Centre‑cut, 4‑flute design for plunge and ramping
• Weldon shank with 16 mm diameter for rigid clamping

Reliable cutting performance for workshop and production

The combination of HSS‑Co8 substrate and a TiCN coating provides a robust balance between toughness and wear resistance, especially where interrupted cuts and elevated temperatures occur. The cobalt alloy improves red‑hardness and fracture resistance compared with standard high‑speed steels, while the coating reduces adhesion and abrasion at the cutting edge. This means consistent chip formation and prolonged tool life when machining medium‑strength steels and stainless steels, helping to maintain productivity across repetitive production runs.

Built for precision and secure clamping

A 4‑flute geometry with centre‑cut capability enables both peripheral milling and controlled plunge operations without the need for specialised cutters. The tool’s Weldon shank and 16 mm clamping diameter deliver mechanical stability in set‑screw holders, reducing vibration and improving surface finish on long reaches. With a cutting diameter of Ø18 mm and an effective length 73 mm, the cutter is suitable where reach and rigidity must be balanced for accurate slotting, pocketing and finishing passes in typical machining setups.

Material suitability and machining guidance

The tool is specified for reliable use on steel, stainless steel and cast materials, with conditional applicability to non‑ferrous metals and special alloys. The cutter performs with uncoated geometry up to around 800 N/mm² material strength and benefits from the TiCN coating for applications reaching approximately 1200 N/mm², extending the range of safe cutting. These figures serve as orientation for selecting speeds and feeds; adjusting cutting parameters to material condition and machine rigidity ensures efficient metal removal while protecting tool life.

Practical applications and workshop integration

Adherence to DIN 844 format and the long flute version make this cutter a pragmatic choice for production shops that require a dependable long‑reach end mill for general machining tasks. The centre‑cut design reduces cycle complexity where plunge cuts are needed, and the four cutting edges favour faster feed rates in slotting and finishing operations. Regular inspection of the cutting edges and appropriate coolant/lubrication strategy will sustain performance; when in doubt about parameter selection for specific machines or materials, Metav Werkzeuge can provide tailored advice to match the tool to the application.

For application recommendations or to discuss the TECWERK end mill D844 Type N in detail, please contact Metav Werkzeuge by e‑mail at info@metav-werkzeuge.com or by phone at +49 2822 7131930 — our consultants will advise on optimal use and supply.

Technical data

• Article number: 2000866410NW
• Standard: DIN 844
• Material: HSS‑Co (HSS‑Co8)
• Coating: TiCN
• Manufacturer: TECWERK

Measurements

• Diameter: 18 mm
• Overall length: 123 mm
• Effective length: 73 mm
• Cutting length: 4 mm
• Shank diameter: 16 mm
• Relief length: 15 mm

Features / Application

• Flutes: 4
• Centre‑cut (plunge‑capable)
• Right‑hand cutting
• Weldon shank
• Suitable for steel, stainless steel, cast
• Conditional for non‑ferrous metals and special alloys

FAQ

Which materials is this cutter best suited for?
The TECWERK end mill D844 Type N (SKU 2000866410NW) is very well suited for machining steel, stainless steel and cast materials; it is conditionally suitable for non‑ferrous metals and certain special alloys depending on cutting parameters.

Can this tool be used for plunge milling?
Yes — the cutter’s centre‑cut geometry allows safe plunge operations as well as conventional peripheral milling, making it suitable for applications that require both ramping and direct plunging.

What advantages does the TiCN coating offer?
The TiCN coating increases surface hardness and reduces adhesion, improving wear resistance and allowing the tool to handle higher material strengths (up to approximately 1200 N/mm²) compared with the uncoated condition.

What type of toolholder is recommended?
The cutter has a Weldon shank with a 16 mm clamping diameter; secure clamping in a matched set‑screw holder or appropriate collet reduces runout and improves rigidity for better surface finish.

What does compliance with DIN 844 mean for this tool?
Conformity with DIN 844 indicates the cutter follows standardised dimensions and design principles for plain milling cutters, facilitating predictable integration into existing tool setups and holders.

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