20mm Cutter DIN 844 NR Short 52mm Effective Length TiCN Coated HSS-Co, 45° Chamfer Weldon - TECWERK

Take advantage of robust HSS‑Co5 construction combined with a TiCN surface finish for longer tool life and reliable performance in low to medium strength steels; order directly via Metav Werkzeuge or consult the technical team for application-specific guidance.

End mill DIN 844 Type NR, 20 mm – HSS‑Co5 with TiCN, Weldon shank (TECWERK)

The End mill DIN 844 Type NR is a short, multi‑cut milling tool designed for reliable slotting and peripheral milling in steel and cast iron, featuring a Weldon shank and a protective TiCN coating.

• HSS‑Co5 construction for high strength
• TiCN coating for extended tool life
• 4‑flute geometry for smooth chip evacuation
• Weldon shank with drive flat for secure clamping

Precision and durability for consistent production results

The cutter is manufactured to DIN 844 standards and built from HSS‑Co5, offering enhanced heat resistance and toughness compared with standard high‑speed steels. The combination of HSS‑Co5 and a TiCN coating reduces wear at elevated cutting temperatures and extends tool life, which lowers tooling change frequency and supports steady machining cycles. The tool’s 20 mm diameter and 52 mm effective cutting length provide a compact solution for short slotting and finishing passes while maintaining dimensional stability under intermittent loads.

Efficient chip control and surface quality in one tool

Equipped with a 4‑flute configuration and a refined relief geometry, the cutter promotes smooth chip evacuation and a consistent surface finish during peripheral milling. The multi‑cut design (short type, Type NR) reduces vibration and distributes cutting forces across multiple edges, which benefits part quality and prolongs flute life. The right‑hand cutting orientation and the presence of a 45° chamfer on the cutting edges aid in controlled entry and reduced burr formation, making the tool suitable for production tasks that demand repeatable surface integrity.

Clear material guidance and application scope

The tool is specified for work on materials with low to medium tensile strength: approximately 800 N/mm² with an uncoated cutter and up to 1000 N/mm² when the TiCN coating is active. It is therefore very well suited to steel and cast iron applications, while use on non‑ferrous alloys, stainless grades and special alloys is conditionally possible depending on cutting parameters. The Weldon shank with drive flat ensures secure clamping in toolholders, enabling high torque transmission and stable entry dynamics in milling centres and machining stations.

Contact Metav Werkzeuge for tailored machining recommendations on TECWERK end mills and assistance selecting the correct tool based on material and machine capabilities

Technical data

• Article number: 2000866450NW
• Standard: DIN 844
• Brand: TECWERK

Facts

• Diameter: 20 mm
• Effective cutting length: 52 mm
• Overall length: 104 mm
• Shank diameter: 20 mm
• Number of flutes: 4
• Cutting direction: right‑hand cut

Special features

• Material: HSS‑Co5
• Coating: TiCN
• Weldon shank with drive flat
• Short multi‑cut Type NR
• 45° chamfered cutting edges
• Centre cutting geometry
• Suitable for steel: very well suited
• Suitable for cast iron: very well suited
• Suitable for non‑ferrous and special alloys: conditionally suited

FAQ

What materials are recommended for this end mill? The TECWERK End mill DIN 844 Type NR (SKU 2000866450NW) is very well suited to steel and cast iron; use on non‑ferrous metals and special alloys is conditionally possible with adapted speeds and feeds.

Can the tool be used for plunging as well as peripheral milling? The cutter includes a centre‑cutting geometry that allows limited plunging operations; for continuous deep plunging, select a tool specifically designed for full axial entry.

How does the TiCN coating affect cutting capability? The TiCN coating increases surface hardness and heat resistance, permitting higher cutting stresses and extending life—allowing work up to about 1000 N/mm² where coating benefits are realised.

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