6mm 2.5mm Mini Slot Milling Cutter HSS-Co8 3-Flute Long Center-Cut Weldon Shank - TECWERK

Combining HSS‑Co8 construction, a three‑cut geometry and a secure Weldon shank results in a durable tool that mills narrow slots precisely in steels and cast iron up to about 800 N/mm²; order the tool directly via Metav Werkzeuge or consult the advisers for machining recommendations.

Mini slot cutter D 2.5 mm HSS‑Co8 (Weldon, 3‑cut, long) — TECWERK

A Mini slot cutter D 2.5 mm HSS‑Co8 engineered for milling narrow grooves and keyways in low to medium‑strength metals, providing centred cutting and reliable chip evacuation in workshop and production environments

• HSS‑Co8 high‑cobalt cutting steel
• Three‑cut geometry for smooth chips
• Weldon shank with 6 mm drive flat
• Designed for steels and cast iron up to 800 N/mm²

Durable cutting performance for steels and cast iron

The HSS‑Co8 material combines high‑speed steel with elevated cobalt content to enhance red‑hardness and wear resistance, extending tool life under demanding conditions. The three‑cut geometry promotes even chip formation and reduces the load per cutting edge, which lowers vibration and improves surface finish. Centre cutting capability enables limited plunge actions and precise entry into the workpiece, making this tool suitable for accurate groove milling where repeatable results are required.

Secure clamping and repeatability for precise grooves

A Weldon shank with a 6 mm drive flat secures the cutter in the holder and prevents rotation under torque, improving concentricity and repeatability in serial production. The long variant provides extra reach for deeper slotting or working in recessed areas while maintaining stability. Right‑hand cutting and cylindrical shank design ensure predictable chip flow and consistent tool runout for tighter tolerances and reduced rework in assembly processes.

Practical integration into workshop workflows

The long three‑cut slot cutter is intended primarily for milling narrow slots, keyways and small grooves in steel and cast iron (very good suitability) with conditional use in non‑ferrous alloys and stainless steel. The single‑unit packaging allows straightforward tool inventory management and rapid replacement. For feeds and speeds, select parameters consistent with high‑cobalt HSS tooling and the machine’s rigidity; for process optimisation and material‑specific recommendations, technical consultation is available to match cutting strategy to the production context. The tool is engineered to support efficient, repeatable machining cycles in both craft and industrial settings.

For reliable slot milling with TECWERK HSS‑Co8 cutters, contact Metav Werkzeuge to secure the correct variant and discuss application parameters — Metav Werkzeuge is available at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000866042NW
• Product: Mini slot cutter D 2.5 mm HSS‑Co8, long
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Cutting diameter: 2.5 mm
• Shank diameter: 6 mm
• Cutting edges: 3
• Suitable up to approx.: 800 N/mm²

Special features

• HSS‑Co8 high‑cobalt tool steel
• Three‑cut geometry
• Centre cutting (plunge capable)
• Weldon shank with drive flat
• Right‑hand cutting
• Very good suitability for steel and cast iron
• Conditional suitability for non‑ferrous metals and inox

FAQ

What materials is the cutter best suited for?
The cutter is optimised for machining steel and cast iron; TECWERK's Mini slot cutter D 2.5 mm HSS‑Co8 performs very well up to roughly 800 N/mm².

Can the tool be used for plunge milling?
Yes, the centre cutting design allows limited plunge milling; the three‑cut geometry supports controlled entry and stable chip formation.

What clamping system is recommended for stable performance?
A Weldon holder matching the 6 mm shank and drive flat is recommended to ensure secure clamping and repeatable concentricity with the TECWERK cutter.

Is the cutter suitable for stainless steel and aluminium?
The cutter has conditional suitability for stainless steel and non‑ferrous metals; for optimal results in these materials, adjust cutting parameters and consider tool life implications for HSS‑Co8.

How many cutting edges does the tool have and why does that matter?
The tool features three cutting edges (Z = 3), which improves chip breaking and surface quality while distributing cutting forces for smoother operation.

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