10mm Core Slot Drill DIN 844 Type N HSS-Co8 3-Flute Long With Centre Cut, Weldon Shank - TECWERK

Benefit from the combination of HSS‑Co8 wear resistance, a secure Weldon shank drive and a long, three‑flute geometry for efficient slotting in steel and cast iron; order the TECWERK cutter directly via Metav Werkzeuge or consult our specialists for tailored application advice.

Slot milling cutter DIN 844 Type N — HSS‑Co8, Weldon shank (TECWERK)

The slot milling cutter DIN 844 Type N is a long, three‑flute tool designed for plunge and slot milling in medium‑to‑high strength materials, offering a Weldon drive for secure clamping on conventional tool holders

• HSS‑Co8 high‑temperature hardness
• DIN 844 Type N, three‑flute design
• Centre‑cutting for plunge and slot milling
• Cylindrical shank with Weldon drive flat

High hardness and stable cutting for tougher materials

The long design in HSS‑Co8 provides elevated red hardness and abrasion resistance, which translates into longer edge life when cutting tougher grades. The cobalt‑alloy high‑speed steel retains hardness at temperature, reducing the rate of flank wear under intermittent loads. Together with the three‑flute geometry, the tool balances chip evacuation and cutting edge strength, making it a cost‑effective choice for repetitive slotting operations where tool life and consistent part quality matter.

Secure clamping and positive machining behaviour

Equipped with a Weldon shank and drive flat, the tool offers reliable torque transmission and repeatable concentricity in standard collet chucks and toolholders. The centre‑cutting feature enables controlled plunging and reduces the need for pre‑drilling, while right‑hand cutting ensures predictable chip flow. This combination decreases setup time and supports stable machining cycles on milling machines and machining centres, improving throughput without compromising surface finish.

Application range and material suitability explained

The cutter is specified for work up to approximately 800 N/mm² with an uncoated tool and up to 1,000 N/mm² when used with a suitable coating, extending its usable range. It is very well suited for steel and cast iron, and offers conditional suitability for stainless steels and non‑ferrous metals; adjustments to speeds and feeds are recommended for softer or more ductile alloys. These characteristics make the tool particularly useful for workshops that handle a mixture of components and need predictable performance across diverse jobs.

Precision diameters and manufacturing tolerances for consistent fit

Available nominal diameters include the common sizes with defined tolerance classes to ensure repeatable fits in fixtures and bore pockets. The specified Ø 10 mm shank matches many standard collet systems, while the relieved cutting geometry supports clean slot edges and reduces burr formation. Users benefit from consistent part tolerances and reduced secondary finishing, which supports a leaner production flow and lower overall processing time per component.

For heavy‑duty slotting tasks choose the TECWERK slot milling cutter available through Metav Werkzeuge — contact Metav Werkzeuge for application guidance or to request technical specifications at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical data

• SKU: 2000866232NW
• Product label: Bohrnutenfräser DIN 844 Typ N D.10mm HSS‑Co8 Weldon Z.3 lang TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1

Core data

• Shank Ø: 10 mm
• Relief grinding: 9.5 mm
• Nominal diameters: 9, 11, 13, 15 mm (tolerance h10 for 9–15 mm, others e8)
• Number of cutting edges: 3

Special features

• Material: HSS‑Co8 (8% cobalt)
• Standard: DIN 844 Type N
• Centre‑cutting (Zentrumschnitt)
• Weldon shank with drive flat (Mitnahmefläche)
• Right‑hand cutting
• Long version (lang)
• Suitability: steel very good, cast iron very good, inox conditionally suitable, non‑ferrous metals conditionally suitable
• Application range: up to ~800 N/mm² uncoated, up to ~1,000 N/mm² with coating

FAQ

Which materials are best suited for this slot milling cutter?
The TECWERK slot milling cutter is very well suited for steel and cast iron, with conditional suitability for stainless steels (inox) and non‑ferrous metals; speeds and feeds should be adapted to the workpiece material.

Can this tool perform plunge milling or direct drilling into the workpiece?
Yes, the centre‑cutting geometry allows controlled plunging operations as well as conventional slot milling, which simplifies setups and can eliminate the need for a separate drill.

What clamping system is required for secure operation?
The Ø 10 mm Weldon shank is compatible with standard collet chucks and toolholders that accept a Weldon drive flat, ensuring secure torque transfer and concentric clamping.

How does the number of flutes affect performance?
The three‑flute design provides a balance between chip evacuation and cutting edge robustness, improving tool life in slotting applications while maintaining acceptable surface finish.

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