18mm Cylindrical Shank End Mill HSS-Co 4 Flute Long 73mm Cutting Length DIN 844 - TECWERK

Take advantage of the combination of durable HSS‑Co8 composition, a long 73 mm cutting reach and a secure Weldon shank to maintain a steady production flow with fewer tool changes and reliable results in steel and cast iron. Order the TECWERK long four‑flute end mill directly via Metav Werkzeuge or ask our consultants for machining recommendations.

TECWERK End Mill DIN 844 Type N Ø18 mm — HSS‑Co8, long, Weldon shank

The TECWERK End Mill DIN 844 Type N Ø18 mm is a long, centre‑cutting, four‑flute cutter designed for precision peripheral milling and plunge operations in low to medium strength steels and cast iron

• HSS‑Co8 for enhanced red hardness
• Long 73 mm effective cutting length
• Weldon shank with drive flat for secure clamping
• Centre‑cutting four‑flute geometry

High‑performance alloy and what it means for tool life

The core advantage of the long four‑flute cutter is its HSS‑Co8 matrix: cobalt‑enriched high‑speed steel increases red hardness and wear resistance compared with standard HSS. That material composition keeps edge strength at elevated temperatures, which translates into longer tool life under continuous cutting. Being centre‑cutting also enables controlled plunge milling without pre‑drilling, reducing setup steps for pocketing and T‑slot work while preserving surface finish and dimensional stability.

Stable clamping and long reach for deeper machining

The combination of a Weldon shank with a drive flat and a 16 mm shank diameter provides secure clamping in standard toolholders and collets, reducing slip and run‑out during heavy passes. With an effective cutting length of 73 mm and an overall length of 123 mm, the tool suits deep slots, cavities and stepped features where reach matters. The four‑flute arrangement balances material removal rate and chip evacuation: it lifts productivity for finishing and semi‑finishing cuts while maintaining good surface quality in suitable materials.

Practical machining notes and material suitability

Designed to the DIN 844 Type N specification with a right‑hand cutting direction, the cutter is best applied to low and medium strength steels and cast iron—both rated as very well suited—while non‑ferrous metals and stainless steels are conditionally suitable depending on cutting data and coolant strategy. As the tool is supplied uncoated, performance expectations are around 800 N/mm² tensile strength for uncoated use; coated variants can extend the application range. For parameter tuning, Metav Werkzeuge’s technical team can advise feed and speed settings tailored to the machine, clamping and workpiece material.

For tailored cutting parameters, stock checks or advice on integrating this TECWERK long HSS‑Co8 end mill into existing tooling setups, contact Metav Werkzeuge via info@metav-werkzeuge.com or call +49 2822 7131930 for prompt, expert support and local supply options

Technical data

• Article number: 2000866388NW
• Standard: DIN 844
• Brand: TECWERK
• Type: End mill (Type N)

Core dimensions

• Diameter: 18 mm
• Effective cutting length: 73 mm
• Overall length: 123 mm
• Shank diameter: 16 mm
• Number of flutes: 4

Special features

• Material HSS‑Co8
• Weldon shank / drive flat
• Centre‑cutting
• Right‑hand cut
• DIN 844 Type N, long version
• Very good for steel
• Very good for cast iron
• Conditional suitability for non‑ferrous metals and stainless steel

FAQ

Is this cutter suitable for plunge milling?
Yes. The TECWERK end mill is centre‑cutting, which permits controlled plunge milling and pocketing without a separate drilling operation.

What materials does the cutter handle best?
The cutter shows very good performance in steel and cast iron; non‑ferrous metals and stainless steel are conditionally suitable depending on cutting data and coolant.

Can the tool be used in standard Weldon holders?
Yes. The tool features a Weldon shank with a drive flat designed for secure clamping in Weldon‑style holders and set screws.

How does HSS‑Co8 affect machining compared with standard HSS?
HSS‑Co8 contains cobalt to improve red hardness and wear resistance, maintaining edge life at higher cutting temperatures for extended runs.

Is regrinding recommended for this cutter?
Regrinding can be feasible; check tool geometry and remaining margin. The TECWERK end mill’s material and fluting support professional regrinding when justified by wear and remaining diameter.

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