8mm Cylindrical Shank Long HSS-Co TiCN Four-Flute End Mill, 44mm Cutting Length, DIN 844 - TECWERK

Benefit from the combination of HSS‑Co construction, TiCN coating and a long 44 mm cutting reach to improve cycle times and reduce tooling changes; order the TECWERK end mill directly via Metav Werkzeuge or contact our consultants for tailored machining advice.

TECWERK HSS‑Co End Mill D844 Type N, Ø8 mm, TiCN, 4‑flute, Weldon

The TECWERK HSS‑Co end mill D844 Type N Ø8 mm is a long, centre‑cutting tool designed for precision milling of steel, stainless steel and cast materials in workshop and industrial environments.

• DIN 844 Type N, centre-cutting
• HSS‑Co base with TiCN coating
• Long 44 mm effective cutting length
• Weldon shank with 10 mm diameter

Increased material removal with predictable performance

The long 44 mm effective cutting length combined with a compact 8 mm diameter and 4‑flute geometry provides a reliable balance between rigidity and material removal. The DIN 844 Type N specification denotes a long‑reach, centre‑cutting profile that enables limited plunge milling and through‑slotting while maintaining accuracy. For production environments seeking consistent cycle times, this design reduces the need for frequent tool changes and supports uninterrupted runs on medium‑duty milling tasks.

Extended tool life thanks to TiCN and cobalt‑alloy steel

Constructed from HSS‑Co and finished with a TiCN coating, the cutter resists adhesive wear and preserves edge integrity under elevated contact temperatures. The coating increases surface hardness and lowers friction, allowing the tool to handle higher specific cutting forces; uncoated operation is suitable up to roughly 800 N/mm², while the TiCN finish extends capability towards 1200 N/mm². The result is longer service life, fewer stoppages for regrinding and improved cost‑efficiency per component machined.

Secure clamping and precise engagement for repeatable accuracy

A Weldon shank with a 10 mm diameter drive flat ensures secure retention in standard tool holders, reducing slippage during heavy cuts. The cylindrical shank and balanced flute arrangement support concentricity and minimise run‑out, which in turn lowers vibration and produces cleaner surface finishes. Where tight tolerances matter, the combination of robust clamping and the tool’s centre‑cutting geometry keeps process variability to a minimum.

Application guidance and material suitability

This end mill is optimised for machining tasks in steel, stainless steel and castings—all rated as very well suited—while non‑ferrous metals and special alloys are listed as conditionally suitable. For operations involving medium‑strength materials, the coated variant is recommended to leverage the higher allowable cutting forces and enhanced wear resistance. When selecting cutting parameters, favour conservative feeds and increases in spindle speed only after verifying chatter behaviour; consult tooling data sheets or our technical team for specific feeds, speeds and coolant recommendations.

For reliable procurement and application support of this TECWERK HSS‑Co end mill, contact Metav Werkzeuge today — our specialists in Emmerich will advise on compatibility, supply and optimal machining parameters.

Technical Data

• Article number: 2000866400NW
• Standard: DIN 844
• Brand: TECWERK
• Product type: End mill
• Material: HSS‑Co
• Coating: TiCN
• Package unit: 1

Facts

• Diameter: 8 mm
• Overall length: 88 mm
• Effective cutting length: 44 mm
• Shank diameter: 10 mm
• Flutes: 4
• Relief: 7.5 mm
• Cutting direction: right‑hand

Special features

• DIN 844 Type N — long, centre‑cutting
• Weldon shank with drive flat
• Cylindrical shank with drive flat
• Z = 4 (four flutes)
• Suitable for steel: very good
• Suitable for stainless steel: very good
• Suitable for non‑ferrous metals: limited suitability
• TiCN coating for extended tool life

FAQ

Is this end mill suitable for plunge cutting?
The tool is centre‑cutting, so limited plunge operations are possible; full‑depth plunging should be validated for the specific workpiece and machine setup.

What materials can be machined with this cutter?
This TECWERK HSS‑Co end mill is very well suited to steel, stainless steel and castings; non‑ferrous metals and special alloys are conditionally suitable.

What does the TiCN coating provide?
The TiCN coating increases surface hardness and reduces friction, extending tool life and enabling higher cutting forces compared with the uncoated tool.

Which shank type and diameter does the cutter use?
The cutter features a Weldon shank with a 10 mm diameter and drive flat for secure clamping in standard holders.

Can this cutter handle hardened steels?
The tool is intended for low to medium strength materials; uncoated operation is suitable to about 800 N/mm², while the TiCN coated version extends capability nearer to 1200 N/mm² depending on application parameters.

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