7mm Slot Drill DIN 844 Type N HSS‑Co8 TiCN Weldon 3‑Flute Long Z‑Center Cut, HSS‑Co8 - TECWERK

Take advantage of the combination of HSS‑Co8 construction, TiCN coating and a Weldon shank for reliable chip evacuation and secure clamping, ensuring a stable production flow; order directly via Metav Werkzeuge or consult the technical advisors for specification support.

Slot drill DIN 844 Type N, HSS‑Co8, TiCN, Weldon (TECWERK) — long, 3‑flute, centre‑cutting

A Slot drill DIN 844 Type N designed for precision slotting and groove milling in moderate‑to‑high strength materials, offering plunge capability and dependable clamping for workshop and CNC environments.

• HSS‑Co8 three‑flute, centre‑cutting geometry
• Weldon shank with driving flat for secure hold
• Suitable for steel and stainless steel up to ~800–1000 N/mm²
• Long version for deeper slotting operations

Outstanding cutting performance and material suitability

The long slotting cutter combines a HSS‑Co8 substrate with an optional TiCN coating to extend durability under demanding conditions. The three‑flute, centre‑cutting geometry permits controlled plunge cutting and efficient chip removal, which reduces the risk of chip packing in narrow slots. Because the tool is specified for materials up to approximately 800 N/mm² with uncoated geometry and up to 1000 N/mm² when TiCN is applied, it provides a clear, technical basis for selecting the appropriate tool life and machining parameters. The result is consistent surface quality and fewer tool changes in continuous production.

Secure clamping and process reliability

A Weldon shank with a driving flat and a shank Ø 10 mm gives robust mechanical engagement in set screws or collets, lowering slip risk during heavy axial cuts. The long variant reduces the need for repeated repositioning when producing deep grooves, and the specified relief length 6.5 mm supports effective cutting geometry near the tip while maintaining axial stability. These features together mean reduced vibration, more predictable tool wear and improved cycle‑time reliability on milling machines and CNC centres.

Practical applications and workshop advantages

Classified to DIN 844 Type N, this long slot drill is suitable for machining tasks such as keyways, axial grooves and through‑slots in components made from stainless steel, cast iron and a range of alloyed steels; non‑ferrous metals and special alloys are conditionally machinable depending on cutting data. The centre‑cutting capability simplifies operations where plunge entry or interrupted cuts occur, eliminating the need for pre‑drilling in many cases. For production and maintenance workshops seeking fewer process steps and consistent results, the cutter offers a balance of precision, accessibility and serviceability.

Contact Metav Werkzeuge for tailored advice on cutting data, coating options and supply – Metav Werkzeuge’s specialists are available at info@metav-werkzeuge.com or by telephone on +49 2822 7131930 to ensure the TECWERK slot drills match the specific machining task

Technical Data

• SKU: 2000866021NW
• Product: Slot drill DIN 844 Type N, long, HSS‑Co8, TiCN, Weldon, 3‑flute, TECWERK

Facts

• Shank Ø: 10 mm
• Relief length: 6.5 mm
• Flutes: 3
• Cutting direction: right‑hand cutting
• Material strength guidance: ~800 N/mm² uncoated, ~1000 N/mm² coated

Special features

• Material: HSS‑Co8 substrate
• Coating: TiCN (as indicated)
• Centre‑cutting geometry for plunge operations
• Cylindrical shank with driving flat (Weldon)
• Suitability: very good for steel, stainless steel and cast iron; conditional for non‑ferrous and special alloys

FAQ

What materials is this slot drill best suited for?
The slot drill DIN 844 Type N from TECWERK is very well suited for steel, stainless steel and cast iron; non‑ferrous metals and special alloys are conditionally machinable depending on cutting data.

Does the TiCN coating make a significant difference?
Yes — the TiCN coating on the TECWERK slot drill increases tool life and allows machining of higher strength steels (up to ~1000 N/mm²) compared with the uncoated version.

Can this cutter perform plunge cuts and through‑slotting?
The centre‑cutting, three‑flute geometry of the slot drill enables controlled plunge cutting and reliable through‑slotting in many applications without a separate pilot drill.

How does the Weldon shank improve machining reliability?
The Weldon shank with driving flat provides secure clamping and reduces slippage in tool holders, improving repeatability and minimising tool wear during heavy cuts.

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