18mm Long Solid Carbide HSS-Co5 TiCN Coated 4-Flute End Mill, DIN 844 HR, 73mm Cutting Length - TECWERK

Combining the HSS‑Co5 core with a TiCN surface and the long‑reach DIN 844 Type HR geometry delivers reliable tool life and consistent results when machining steels and cast components; order via Metav Werkzeuge or consult their specialists for cutting data and application advice.

End mill DIN 844 Type HR, 18 mm — HSS‑Co5, TiCN coating, Weldon shank (TECWERK)

The End mill DIN 844 Type HR is a long‑reach, four‑flute HSS‑Co cutter with TiCN coating, engineered for heavy‑duty milling of steel and cast parts where tool life and secure clamping matter.

• HSS‑Co5 core with TiCN coating
• DIN 844 long profile, Type HR
• 4‑flute geometry with centre cutting
• Weldon shank with drive flat

Precise long‑reach geometry for productive milling

The long‑profile design conforming to DIN 844 gives a clear advantage when access or reach is required. The 4‑flute layout balances chip evacuation and cutting stability, while the centre cutting capability permits plunge starts where needed. A relief‑ground, fine‑profile flute reduces cutting forces and helps maintain surface finish over longer engagement lengths; the incorporated 45° chamfer protects the cutting edge from premature chipping. Together, these features translate directly into fewer tool changes and steadier cycle times on demanding components.

Material and coating: why HSS‑Co5 plus TiCN improves endurance

The HSS‑Co5 substrate provides toughness under intermittent cutting and absorbs shock loads better than many harder grades, making it well suited to varying batchwork. The TiCN coating increases hardness at the cutting edge and reduces adhesion tendencies, which lowers the risk of built‑up edge when machining tougher steels. For workshop planners this means longer intervals between regrinds and a more predictable tool‑life profile when processing ferrous materials up to approximately ~1200 N/mm² tensile strength.

Secure mounting and dimensions that aid process reliability

A Weldon shank with drive flat ensures positive torque transmission in set‑screw holders and milling chucks, reducing slippage during heavy cuts. Key dimensions include 18 mm cutting diameter, 73 mm effective length and 123 mm overall length, combined with a 16 mm shank diameter that fits common toolholders. The tool’s relief clearance of 15 mm and right‑hand cutting direction further support stable set‑up and consistent chip flow, so operators can rely on repeatable positioning and reduced tool vibration.

Application scope and practical machining guidance

The tool shows very good suitability for steel and castings, while performance on non‑ferrous metals, stainless steels and special alloys is conditional and benefits from optimised cutting data. The long profile and robust substrate make it a rational choice for medium‑to‑heavy machining tasks where reach and edge retention are priorities. Using appropriate feeds, moderate chip loads and coolant will extend lifetime; the combination of geometry and coating aims to lower overall machining cost by reducing downtime and regrind frequency.

Contact Metav Werkzeuge for tailored advice on TECWERK end mills — email info@metav-werkzeuge.com or call +49 2822 7131930 to request cutting parameters or ordering assistance

Technical data

• Article number: 2000866558NW
• Name: End mill DIN 844 Type HR D.18mm Einsatz-L.73mm HSS-Co5 TiCN Weldon TW
• Standard: DIN 844
• Manufacturer: TECWERK

Facts

• Diameter: 18 mm
• Overall length: 123 mm
• Effective length: 73 mm
• Shank diameter: 16 mm
• Number of flutes: 4
• Relief clearance (freischliff): 15 mm
• Cutting direction: right-hand

Special features

• Material: HSS‑Co5
• Coating: TiCN
• Type: HR, long profile
• Centre cutting
• 45° chamfer
• Weldon shank with drive flat
• Suitability: steel (very good), castings (very good), NE‑metals/INOX/special alloys (conditional)

FAQ

What materials is this end mill best suited to?
The TECWERK end mill is very well suited for steel and castings, with conditional suitability for non‑ferrous metals, stainless steel and special alloys; cutting data should be adapted accordingly.

Can the tool perform plunge milling or helical entry?
Yes, the centre‑cutting geometry allows plunge starts and safe helical entry; adjust feed and coolant to the component material to maintain edge life.

How should the cutter be clamped for heavy milling?
Use a set‑screw holder or milling chuck to exploit the Weldon shank drive flat; proper clamping minimises run‑out and prevents slippage under torque.

What are the benefits of the TiCN coating in daily use?
The TiCN coating increases edge hardness and reduces adhesion, which helps prevent built‑up edge and extends effective tool life, especially when machining tougher steels.

Which standard and SKU identify this tool?
This cutter conforms to DIN 844 and is listed as SKU 2000866558NW, making it straightforward to reference in procurement and tool data sheets.

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