4mm Corner Radius Milling Cutter DIN 844 Type W HSS-Co8 Short 3-Flute Weldon 6mm Shank 40° Helix – TECWERK

Benefit from a combination of robust HSS‑Co8 construction, precise centre‑cutting three‑flute geometry and a secure Weldon shank for consistent slotting performance; order this specialist cutter directly via Metav Werkzeuge or consult the team for application advice.

Slot drill DIN 844 Type W, 4 mm — HSS‑Co8, Weldon shank (TECWERK)

The Slot drill DIN 844 Type W, 4 mm is a short, centre‑cutting three‑flute cutter designed for slotting and plunge milling in aluminium and other non‑ferrous metals for demanding workshop and light industrial applications

• HSS‑Co8 material for sustained hardness
• Centre‑cutting three‑flute geometry
• Weldon shank with 6 mm shank diameter
• Optimised for long‑chip aluminium and NE‑metals

Precise cutting performance for long‑chip materials

The short, centre‑cutting design paired with three‑flute geometry gives controlled chip formation and reliable plunge capability when machining long‑chip aluminium and similar alloys. Constructed from HSS‑Co8, the tool maintains cutting edge hardness at elevated temperatures typical for continuous slotting operations; this sustains tool life under repetitive use. The 40° helix supports smooth chip flow and reduces rubbing, which in turn improves surface finish and reduces the likelihood of built‑up edge when working with soft, ductile non‑ferrous materials.

Secure mounting and rigid tool control

A Weldon shank with a 6 mm diameter provides a positive drive and prevents slippage in tool holders that accept drive flats, improving repeatability in production and one‑off tasks alike. The short tool form increases rigidity and minimises deflection during cutting, which benefits dimensional accuracy in narrow slots and keyways. Right‑hand cutting geometry ensures conventional chip evacuation; the combination of shank design and short length is particularly suited to milling centres and compact milling heads where stability is paramount.

Practical workshop applications and handling advice

Engineers and machinists will appreciate that the cutter is specified to DIN 844 Type W, meaning it conforms to established dimensions and interchangeability expectations for slot drills. Its suitability for long‑chip aluminium and other non‑ferrous metals makes it an excellent choice for components where chip control and surface quality are priorities. Routine inspection and correct holder clamping are recommended to preserve the HSS‑Co8 cutting edge; when worn, the tool can be replaced cost‑effectively to maintain process reliability on the shop floor.

For reliable slotting in non‑ferrous materials with TECWERK's HSS‑Co8 short slot drill, contact Metav Werkzeuge for availability and tailored technical guidance.

Technical data

• Article number: 2000866274NW
• Designation: Slot drill DIN 844 Type W, 4 mm
• Manufacturer: TECWERK
• Packaging unit: 1

Specifications

• Diameter: 4 mm
• Shank diameter: 6 mm
• Number of flutes: 3
• Helix angle: 40°
• Shank type: Weldon (drive flat)
• Cutting direction: Right‑hand

Features

• Material: HSS‑Co8
• Standard: DIN 844 Type W
• Centre‑cutting geometry
• Short form for increased rigidity
• Very well suited to aluminium and non‑ferrous metals

FAQ

Is this cutter suitable for plunge milling into aluminium?
Yes. The centre‑cutting geometry of the Slot drill DIN 844 Type W, 4 mm (TECWERK, SKU 2000866274NW) allows controlled plunge milling and slotting in long‑chip aluminium alloys.

What material is the cutter made from and why does it matter?
The cutter is made from HSS‑Co8; this cobalt‑alloyed high‑speed steel retains hardness at higher cutting temperatures, improving wear resistance when machining non‑ferrous metals.

What shank mounting is required for this tool?
A Weldon holder or chuck accepting a 6 mm shank with a drive flat is required to ensure secure clamping and torque transmission for the short slot drill.

Which materials is the tool optimised for?
The tool is optimised for long‑chip aluminium and other non‑ferrous metals, offering superior performance where chip control and surface finish are critical.

Does the cutter comply with a recognised standard?
Yes, the cutter conforms to DIN 844 Type W dimensions and form, providing interchangeability and predictable performance in standardised setups.

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