6mm Slot Drill DIN 844 Type N HSS-Co8 Long 3-Flute Centre Cutting Weldon Shank - TECWERK

Combining a long three-flute, centre-cut design with HSS-Co8 construction and a secure Weldon shank, this slot drill provides reliable groove milling in steel and cast iron. Order the item directly via Metav Werkzeuge or consult our specialists for application-specific advice.

TECWERK slot drill DIN 844 Type N – HSS‑Co8, Ø6 mm shank, Weldon

A versatile long slot drill in DIN 844 Type N for plunge and slot milling in medium-strength materials, featuring a centre cut and Weldon drive flat.

• HSS‑Co8 high‑cobalt grade for heat resistance
• Three‑flute centre‑cut for plunge milling
• Weldon shank with drive flat for secure clamping
• Very good suitability for steel and cast iron

Consistent groove milling through a high‑cobalt cutting geometry

The long, three‑flute geometry combined with HSS‑Co8 (8 % cobalt) provides a balance of toughness and hot‑hardness that supports continuous cutting under elevated temperatures. The centre‑cut geometry enables controlled plunge milling into stock without pre‑drilling, which reduces setup time and supports efficient slot creation. This construction is particularly effective when machining medium‑strength steel and cast iron, where the tool maintains edge stability and resists thermal softening, contributing to predictable cycle times and fewer rejected parts.

Secure clamping and accurate tool‑positioning for repeatable results

A Weldon shank with a drive flat and a 6 mm shank diameter ensure positive clamping in standard toolholders and collets, reducing slippage and run‑out during interrupted cuts. The cylindrical shank with the drive surface permits reliable torque transfer for groove milling, while the specified relief length (free grind) supports chip evacuation in deeper slots. These mechanical details translate into improved surface finish and dimensional consistency on batches and single‑piece work alike.

Clear material application and controlled performance limits

The cutter is specified for machining a range of materials: very good suitability for steel, very good suitability for cast iron, and conditional suitability for non‑ferrous metals and stainless steel (INOX). In practice, the tool performs well up to approximately 800 N/mm² when uncoated; when paired with suitable coatings, the operating limit can extend toward 1000 N/mm², allowing harder steels to be addressed with appropriate surface treatments. The right‑hand cutting orientation and DIN 844 Type N standardisation make the tool straightforward to integrate into established machining processes.

Practical workshop benefits and selection guidance

As a long version of the Type N slot cutter, the tool is well suited for maintenance, prototyping and small‑batch production where flexibility and fast changeover are priorities. Its centre cutting ability removes the need for separate drilling operations in many cases, shortening process chains. For selection, match the nominal cutter diameter and tolerance class to the application; the design is optimised for stable clamping and predictable chip control during slotting operations.

Contact Metav Werkzeuge for specification matching and ordering; our consultants at Metav Werkzeuge can advise on compatibility with existing toolholders and recommended cutting parameters

Technical Data

• Article number: 2000866228NW
• Manufacturer: TECWERK
• Standard: DIN 844 Type N
• Material: HSS‑Co8 (8 % cobalt)
• Shank Ø: 6 mm
• Flutes: 3 (three‑flute)
• Cutting direction: right‑hand
• Centre cut: yes
• Shank type: Weldon (drive flat)
• Length: long
• Packaging unit: 1

Facts

• Nominal diameters: 9, 11, 13, 15 mm (tolerance h10)
• Other sizes tolerance: e8
• Recommended machinable strength: up to ~800 N/mm² (uncoated)
• Extended capability: up to ~1000 N/mm² with suitable coating

Special features

• Zentrumschnitt (centre cutting)
• Zylinderschaft mit Mitnahmefläche (cylindrical shank with drive flat)
• Rechtsschneidend (right‑hand cutting)
• Werkstoffeignung – Steel: very good
• Werkstoffeignung – Cast iron: very good
• Werkstoffeignung – Non‑ferrous metals: conditional
• Werkstoffeignung – Stainless steel (INOX): conditional
• Freischliff (relief length): 5.5 mm

FAQ

Is this cutter suitable for plunge cutting into steel?
The long slot drill is centre‑cut and designed for plunge milling; it performs well for plunge entries in medium‑strength steel, especially when appropriate feeds and speeds are used.

Which shank system is required for secure clamping?
A toolholder or collet that accepts a 6 mm Weldon shank with a drive flat is required to ensure secure clamping and minimise run‑out for this TECWERK cutter (SKU 2000866228NW).

Can this cutter machine stainless steel (INOX) effectively?
The cutter has conditional suitability for stainless steel; successful machining of INOX depends on the alloy, cutting data and whether a coated variant is selected to raise the hardness capability.

What is the advantage of HSS‑Co8 compared with standard HSS?
HSS‑Co8 offers higher hot‑hardness and improved wear resistance at elevated temperatures compared with standard HSS, which supports longer tool life and more consistent performance in harder or heat‑generating operations.

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