3mm Groove Milling Cutter DIN 844 Type W HSS-Co8 40° Helix Short Weldon Shank 6mm - TECWERK

Take advantage of the HSS‑Co8 construction and three‑flute, centre‑cutting geometry for reliable slotting in long‑chip aluminium and other non‑ferrous metals; the short design and Weldon shank (6 mm) provide rigidity and secure clamping for repeatable results. Order the tool directly via Metav Werkzeuge or ask the Metav consultants for application advice.

TECWERK Slot Milling Cutter DIN 844 Type W, Ø 3 mm — HSS‑Co8, 3‑flute

A TECWERK slot milling cutter DIN 844 Type W (Ø 3 mm) designed for precision slotting and keyway operations in long‑chip aluminium and other non‑ferrous metals

• HSS‑Co8 for enhanced wear resistance
• Three‑flute, centre‑cutting geometry
• 40° helix for improved chip evacuation
• Weldon shank with drive flat, Ø 6 mm

High performance for long‑chip aluminium and non‑ferrous alloys

The short DIN 844 Type W tool is engineered to deliver consistent slotting results in long‑chip aluminium and similar materials. Made from HSS‑Co8, the cutter combines hardness with toughness to resist edge wear under continuous operation. The three‑flute configuration reduces radial engagement per tooth, lowering cutting forces and enabling higher feed rates while maintaining surface quality. These characteristics translate into shorter cycle times and more predictable output on production runs.

Geometry that supports clean cuts and efficient machining

A centre‑cutting design and a 40° helix angle support reliable plunging capability and fast chip evacuation, respectively, which is especially beneficial when working with ductile, long‑chip materials. The steep helix helps form and break chips before they can clog the cutter, reducing the need for frequent stoppages. As a result, operators will notice improved process stability and a cleaner slot finish, which reduces rework and downstream finishing efforts.

Rigidity and clamping for repeatable accuracy

The short length increases stiffness at the cutting edge, which, combined with the Weldon shank and its drive flat, ensures secure clamping and minimal micro‑movement during heavy engagement. The Ø 6 mm shank matches common collet and holder sizes, simplifying integration into existing tooling setups. Increased rigidity lowers deflection, helping to maintain dimensional tolerances and extend tool life, so fewer replacements are required over a production cycle.

Practical application notes and productivity gains

This cutter is optimised for slotting and groove milling tasks where chip control and surface integrity matter. The HSS‑Co8 material tolerates intermittent higher cutting temperatures better than standard high‑speed steels, making it suitable for medium‑duty operations without advanced coatings. For best results, pair with appropriate cutting fluids or air blast for aluminium machining, and adjust speeds and feeds to account for workpiece hardness and fixture rigidity. The combination of material, flute geometry and shank design supports economic machining with consistent part quality.

Contact Metav Werkzeuge today for specification support or to secure the correct TECWERK slot milling cutter for the intended application; Metav’s consultants in Emmerich can advise on feeds, speeds and holder compatibility.

Technical Data

• Article number: 2000866272NW
• Label: Bohrnutenfräser DIN 844 Typ W D.3mm HSS‑Co8 Weldon Z.3 kurz TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1

Core specifications

• Cutting diameter: Ø 3 mm
• Shank diameter: Ø 6 mm
• Number of flutes: 3
• Helix angle: 40°
• Cutting direction: right‑hand cutting

Materials & features

• Material: HSS‑Co8 (cobalt‑alloyed high‑speed steel)
• Standard: DIN 844 Type W
• Geometry: centre‑cutting, three‑flute
• Shank: cylindrical with Weldon drive flat
• Application suitability: long‑chip aluminium and non‑ferrous metals
• Design: short version for increased rigidity

FAQ

What materials is this cutter best suited for?
The TECWERK slot milling cutter (DIN 844 Type W, Ø 3 mm, SKU 2000866272NW) is very well suited for long‑chip aluminium and other non‑ferrous metals thanks to its HSS‑Co8 composition and flute geometry.

Can the tool be used for plunge milling?
Yes. The centre‑cutting geometry allows plunge operations; the three‑flute layout and 40° helix aid chip evacuation during plunging.

How does the Weldon shank benefit the machining process?
A Weldon shank with a drive flat provides secure clamping and prevents slippage in the holder, improving repeatability and reducing tool run‑out during slotting.

Is the cutter suitable for hard or alloyed steels?
The tool is optimised for non‑ferrous materials; HSS‑Co8 offers improved wear resistance but the cutter is not specified for machining high‑hardness steels or hardened alloys.

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