20mm Drilling Slot Cutter HSS-Co8 3-Flute Long, 104mm Overall Length, Right-Hand - TECWERK

Take advantage of the HSS‑Co8 construction, three cutting edges and the secure Weldon shank for reliable groove milling in mixed workshop use; order the slot cutter directly via Metav Werkzeuge or consult the team for application advice.

Slot cutter DIN 844 Type N Ø20 mm – HSS‑Co8, Weldon shank (TECWERK)

A slot cutter designed for plunge and slot milling in general workshop and industrial applications, the Slot cutter DIN 844 Type N Ø20 mm – HSS‑Co8, Weldon shank (TECWERK) is suited to steel and cast-iron machining.

• HSS‑Co8 material for extended durability
• Three cutting edges for smoother cutting
• Weldon shank with driving flat for secure hold
• Centre-cutting long design for plunge milling

Reliable cutting performance for steel and cast iron

The long, centre‑cutting design delivers consistent results when producing grooves and slots. Built from HSS‑Co8, the tool offers increased red‑hardness and wear resistance compared with standard high‑speed steels, which translates into longer tool life under continuous operation. The three cutting edges distribute cutting forces more evenly, reducing chatter and improving surface finish during slotting operations. For machining tasks where process stability and predictable tool wear matter, this long‑reach variant provides a balance between accessibility and rigidity.

Secure clamping and stable machining for accurate grooves

A Weldon shank with driving flat ensures positive torque transmission in standard toolholders and reduces the risk of slippage during interrupted cuts. The cutter’s geometry features a free relief length of 19 mm and an effective length of 52 mm within an overall length of 104 mm, offering sufficient reach for deeper grooves while maintaining lateral stability. The nominal Ø20 mm body and 20 mm shank diameter allow straightforward integration into commonly used collets and holders, making set‑up fast and repeatable for production and repair work alike.

Clear material recommendations and safe operating envelope

This tool is specified for machining materials up to approximately 800 N/mm² with uncoated tooling and up to 1000 N/mm² when used with an appropriate coating; in practice, this means very good suitability for steel and cast iron, with conditional suitability for non‑ferrous metals and stainless steels. The cutter’s right‑hand cutting direction aligns with standard milling practices and allows reliable chip formation on conventional machines. Selecting feeds and speeds that respect the cobalt‑alloyed HSS composition will preserve tool life and maintain consistent groove geometry.

Practical benefits in workshop and light industrial production

The combination of a centre‑cutting tip and three flutes makes the cutter suitable for plunge starts and short through‑cuts, reducing the need for pilot drilling in many slotting tasks. The tool’s DIN 844 Type N conformity ensures interchangeability and predictable tolerances for integration into established workflows. Where productivity matters, operators benefit from the reduced downtime of fewer tool changes and the easier handling afforded by the Weldon shank, which simplifies clamping and prevents rotation under load.

Contact Metav Werkzeuge for tailored recommendations on cutter selection and clamping options for this TECWERK slot cutter, SKU 2000866242NW — specialist advice and rapid supply from our Emmerich quality hub.

Technical data

• SKU: 2000866242NW
• Norm: DIN 327
• Label: Bohrnutenfräser DIN 844 TypN D.20mm HSS‑Co8 Weldon Z.3 lang TECWERK
• Manufacturer: TECWERK
• Product type: Slot cutter / Bohrnutenfräser

Facts

• Diameter: 20 mm
• Overall length: 104 mm
• Cutting length: 3 mm
• Effective length: 52 mm
• Free relief (freischliff): 19 mm
• Shank diameter: 20 mm
• Cutting edges: 3
• Package unit: 1

Special features

• Material: HSS‑Co8
• DIN 844, Type N, long version
• Centre cutting (Zentrumschnitt)
• Weldon cylindrical shank with driving flat
• Right‑hand cutting direction
• Uncoated tool
• Suitable up to ~800 N/mm² (uncoated), ~1000 N/mm² (with coating)
• Very good suitability for steel and cast iron; conditional suitability for NE‑metals and inox

FAQ

What materials is this slot cutter best suited for?
The slot cutter (TECWERK, SKU 2000866242NW) is very well suited for steel and cast iron; performance on non‑ferrous metals and stainless steel is conditional and depends on cutting parameters.

Can the cutter perform plunge cuts or drilling starts?
Yes, the centre‑cutting geometry allows plunge starts and short plunges, making the cutter suitable for slotting without a separate pilot hole in many cases.

Is the shank compatible with common toolholders?
The Weldon shank with driving flat is compatible with standard holders and clamping systems that accept a 20 mm cylindrical shank, providing secure torque transmission.

How does the HSS‑Co8 material affect tool life?
The cobalt‑alloyed HSS‑Co8 composition increases hot‑hardness and wear resistance compared with conventional HSS, extending tool life under higher cutting temperatures and continuous operation.

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