5mm Gun Drilling Slot Mill HSS-Co8 3-Flute Long 13mm Effective Length DIN 844 - TECWERK

Combine HSS‑Co8 construction, 3‑flute centre‑cutting geometry and a secure Weldon shank to achieve reliable slotting and keyway work; order the TECWERK slot drill directly via Metav Werkzeuge or ask our consultants if needed

TECWERK slot drill DIN 844 Type N — 5 mm, HSS‑Co8, 3‑flute, Weldon shank

TECWERK slot drill DIN 844 Type N is a long, centre‑cutting slot milling cutter designed for precision slotting, keyway milling and plunge cuts in steels and cast iron

• HSS‑Co8, 3‑flute for effective cutting
• DIN 844 Type N long version, centre‑cutting
• Weldon cylindrical shank with drive flat
• Suitable for steel and cast iron up to 800 N/mm²

Faster, more consistent slotting for production work

The HSS‑Co8 composition combined with a 3‑flute geometry provides a balance of toughness and sharpness that improves tool life during repetitive slotting. The centre‑cutting design enables limited plunge capability, so the cutter performs both entry milling and slot generation without pre‑drilling in many cases. This results in reduced cycle times and fewer tool changes, supporting higher throughput in small to medium‑sized production environments. The long variant under DIN 844 Type N is particularly helpful where deeper engagement or extended reach is required.

Secure mounting and reliable drive transfer in machining

A Weldon shank with a drive flat ensures positive clamping in standard toolholders and collets, reducing slippage when generating side loads typical of slotting and keyway operations. The cutter’s 6 mm shank diameter pairs with compact toolholders commonly found in toolrooms and small machining centres, allowing changeover without specialised adaptors. Right‑hand cutting geometry maintains conventional chip flow and eases integration into established machining programmes, while the 5 mm nominal diameter delivers precise, repeatable slot widths for assembly and fitment tasks.

Clear material guidance for optimal results

This cutter is dimensioned and hardened for demanding workshop use: it is rated very good for steel and cast iron and is conditionally suitable for stainless steels and non‑ferrous metals. For uncoated tools the practical workability reaches up to 800 N/mm² tensile strength; when a suitable coating is applied, tougher cuts can be considered. Selecting the correct feeds and speeds for HSS‑Co8 cutters is essential — slower, steady feed with effective chip evacuation protects the cutting edges and sustains dimensional accuracy in series work.

Practical benefits for the workshop and maintenance

Using a robust slot milling cutter like this cuts downtime: the combination of alloyed high‑speed steel and three cutting edges supports predictable wear patterns that simplify regrinding intervals and tool inventory planning. The cutter’s long form factor reduces the need for multiple tool lengths in many setups, and the centre‑cutting tip reduces auxiliary operations such as pre‑drilling. These characteristics help consolidate tooling lists and reduce procurement complexity for production managers and purchasing teams.

For precise specification advice, machining parameter recommendations or to secure the appropriate TECWERK slot drill for your application, contact Metav Werkzeuge in Emmerich at info@metav-werkzeuge.com or +49 2822 7131930 — our specialists will assist with selection and availability

Technical data

• Article number: 2000866226NW
• Product: Slot drill DIN 844 Type N, long
• Material: HSS‑Co (HSS‑Co8)
• Manufacturer: TECWERK

Facts

• Diameter: 5 mm
• Overall length: 57 mm
• Cutting length: 3 mm
• Effective length: 13 mm
• Shank diameter: 6 mm
• Cutting edges: 3
• Cutting direction: Right‑hand cutting

Special features

• Weldon cylindrical shank with drive flat
• Centre‑cutting capability
• Long version for extended reach
• Suitable for steel and cast iron up to 800 N/mm² uncoated
• Conditional suitability for stainless and non‑ferrous metals

FAQ

What materials is this cutter best suited for?
The TECWERK slot drill is optimised for steel and cast iron, offering very good performance on those materials; stainless steel and non‑ferrous metals are conditionally suitable depending on cutting data.

Can this tool perform plunge cuts?
Yes, the centre‑cutting geometry of this slot milling cutter allows limited plunge cutting, so in many cases pre‑drilling can be avoided.

How is the cutter secured in the toolholder?
The Weldon cylindrical shank with drive flat provides positive clamping to prevent rotation under load when the cutter is used for slotting and keyways.

What are the key dimensions to check before ordering?
Check the nominal diameter (5 mm), shank diameter (6 mm), overall length (57 mm) and cutting length (3 mm) to ensure compatibility with the machine and fixturing.

What is the product SKU for ordering and reference?
The SKU for this TECWERK slot drill is 2000866226NW and can be used when enquiring with Metav Werkzeuge for availability.

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