4mm Milling Cutter DIN 844 Type W HSS-Co8 Long 3-Flute Centre Cut Cylindrical Shank 6mm - TECWERK

Combine high wear resistance with secure Weldon mounting and centre‑cut capability for precise slotting in non‑ferrous metals; take advantage of the compact Ø 4 mm design and three‑flute geometry for efficient production. Order the TECWERK slotting cutter directly via Metav Werkzeuge or ask our consultants if needed.

TECWERK slotting cutter DIN 844 Type W — Ø 4 mm, HSS‑Co8, Weldon shank, 3 flutes (long)

The TECWERK slotting cutter DIN 844 Type W is a long, three‑flute slotting cutter designed for machining long‑chip aluminium and other non‑ferrous metals, offering centre‑cut capability and a Weldon shank for secure clamping in production environments.

• HSS‑Co8 for high wear resistance
• Ø 4 mm cutting diameter
• Weldon shank with drive flat
• Optimised for aluminium & non‑ferrous metals

Precision slotting for long‑chip materials

The long, three‑flute design delivers a balance of chipload and surface finish that suits continuous slotting operations. Manufactured from HSS‑Co8, the tool offers improved hot hardness and wear resistance compared with conventional high‑speed steels, which supports longer tool life under elevated cutting temperatures. With a compact Ø 4 mm cutting diameter and centre‑cut capability, the cutter enables accurate internal and external slot machining while maintaining consistent dimensional tolerances. The combination of material and flute geometry reduces the need for frequent tool changes, supporting reliable production throughput and predictable process costs.

Efficient chip evacuation and stable cutting

A 40° helix provides accelerated chip evacuation and smooth cutting action when machining long‑chip aluminium and other non‑ferrous alloys. The pronounced helix angle helps form and eject long swarf, minimising recutting and the risk of built‑up edge, which in turn preserves surface quality and reduces secondary finishing. The three‑flute geometry also permits a favourable balance between chip space and cutting edge length, improving feed capability and stability in plunge and axial slotting operations. As a result, machining cycles become more efficient and less prone to interruptions caused by chip pack‑up.

Secure clamping and compatibility with standard holders

Equipped with a Weldon shank featuring a drive flat on a 6 mm cylindrical shaft, the cutter ensures positive drive and reduced slippage under high feed forces. The robust clamping interface supports consistent concentricity and lower run‑out when used in standard milling holders or collet chucks designed for Weldon fixtures. Right‑hand cutting geometry and DIN 844 Type W specification give predictable cutting behaviour across batches, helping to maintain repeatable results on production lines and in precision workshops. The solid shank construction contributes to vibration damping and improved surface finish.

Practical advantages for workshops and production

Focused on non‑ferrous metalwork, this long slotting cutter suits component manufacturing where continuous slots or keyways are required in aluminium, brass and similar alloys. The centre‑cut feature permits limited plunge cutting, enabling more flexible toolpaths and reduced tool inventory. For operations seeking a durable, high‑performance tool for fine slotting tasks, the long three‑flute variant offers a practical compromise between rigidity, chip control and surface integrity. Technical advice and machining recommendations are available to support process integration and ensure the tool’s characteristics align with machining strategy.

For precise slotting in aluminium and non‑ferrous metals, contact Metav Werkzeuge for expert advice and reliable supply: info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 2000866296NW
• Item label: Bohrnutenfräser DIN 844 Typ W D.4mm HSS‑Co8 Weldon Z.3 lang TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Cutting diameter: 4 mm
• Shank diameter: 6 mm
• Flutes: 3
• Helix angle: 40°

Special features

• HSS‑Co8 material
• DIN 844 Type W
• Long version (extended flute length)
• Centre cutting (plunge capable)
• Weldon shank with drive flat
• Right‑hand cutting
• Optimised for long‑chip aluminium and non‑ferrous metals

FAQ

Which materials is this cutter suited for?
The TECWERK slotting cutter DIN 844 Type W (SKU 2000866296NW) is optimised for long‑chip aluminium and other non‑ferrous metals, offering very good suitability for these materials.

Can the cutter perform plunge cuts?
Yes, the cutter is centre cutting, which permits plunge operations and axial slotting where required.

What shank size and clamping type does the tool use?
The tool has a 6 mm cylindrical shank with a Weldon drive flat, providing secure mounting in compatible toolholders.

Is the cutter suitable for hardened or high‑alloy steels?
No specific suitability for hardened steels is indicated; this cutter is specified for non‑ferrous metals and long‑chip aluminium applications.

How does the 40° helix affect machining?
The 40° helix improves chip formation and evacuation for long chips, enhancing surface finish and reducing the risk of chip re‑cutting during slotting.

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