4mm Mini Keyseat Cutter HSS-Co8 3-Flute Long With Centre Cutting, 6mm Shank - TECWERK

Benefit from precise slotting performance, HSS‑Co8 wear resistance and a secure 6 mm Weldon shank for reliable production runs; order the mini slot milling cutter via Metav Werkzeuge or request advice from Metav consultants.

Mini slot milling cutter D.4 mm HSS‑Co8 Weldon Z.3 long (TECWERK) — 4 mm mini slot milling cutter with HSS‑Co8 and Weldon shank

Mini slot milling cutter D.4 mm HSS‑Co8 Weldon Z.3 long (TECWERK) designed for slotting and plunge operations in steel and cast iron with a long flute length for deeper grooves

• HSS‑Co8 high‑speed steel
• Three‑flute centre‑cutting geometry
• 6 mm Weldon shank with drive flat
• Very good for steel and cast iron

High productivity with long‑life cutting edges

Constructed from HSS‑Co8, this mini slot milling cutter offers enhanced hardness and thermal stability compared with standard high‑speed steel, which translates into longer tool life and fewer tool changes on the shop floor. The three‑flute design balances chip evacuation and cutting strength: it provides a good chip cross‑section while maintaining stability in narrow slots. The centre‑cutting geometry allows controlled plunge entry, reducing the need for pilot holes and saving set‑up time during repetitive tasks.

Secure clamping and positive torque transmission

The Weldon shank with drive flat and a 6 mm diameter ensures a positive grip in collets and toolholders, minimising slippage under load and improving concentricity for fine slotting work. The long shank version reduces the need for extensions when machining deeper grooves, while right‑hand cutting keeps chip flow predictable. Together, these features support consistent part quality and reduce run‑in rejects in serial production.

Optimised for common workshop materials

Designed primarily for applications up to approximately 800 N/mm², the cutter is very good for steel and very good for cast iron, with conditional suitability for non‑ferrous metals and stainless steel (INOX). The three‑edge geometry produces steady chip formation that helps avoid clogging when machining grey cast or medium‑strength steels. For users transitioning between materials, the cutter’s material rating and geometry make it suitable for mixed‑batch shops aiming to maintain throughput without frequent tool swaps.

Practical handling and application notes

As a centre‑cutting tool with three cutting edges, the cutter enables plunge‑cutting and conventional slotting in vertical and CNC milling machines. The right‑hand cutting direction and long flute length favour applications requiring deeper pockets or narrow keyways. For best results, match speeds and feeds to the workpiece material and machine rigidity; the tool’s construction supports steady performance under typical workshop conditions and helps reduce vibration in slender setups.

Secure TECWERK's HSS‑Co8 mini slot milling cutter from Metav Werkzeuge — contact Metav Werkzeuge for tailored technical advice and rapid delivery via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000866048NW
• Designation: Mini slot milling cutter, 4 mm
• Manufacturer: TECWERK

Core specifications

• Material: HSS‑Co8
• Diameter: 4 mm
• Shank diameter: 6 mm
• Flutes: 3
• Cutting: centre‑cutting, right‑hand
• Shank type: Weldon with drive flat
• Version: long

Applications & features

• Very good for steel
• Very good for cast iron
• Conditionally suitable for non‑ferrous metals
• Conditionally suitable for stainless steel (INOX)
• For materials up to approx. 800 N/mm²
• Three‑cutting‑edge geometry for smooth chips

FAQ

What materials is the mini slot milling cutter suitable for?
The mini slot milling cutter D.4 mm HSS‑Co8 (TECWERK, SKU 2000866048NW) is very well suited to steel and cast iron and is conditionally suitable for non‑ferrous metals and stainless steel.

Can this tool perform plunge cutting?
Yes — the centre‑cutting geometry of the TECWERK HSS‑Co8 cutter allows plunge cutting, making it suitable for slotting operations without pre‑drilling.

How does the Weldon shank affect clamping security?
The 6 mm Weldon shank with drive flat provides positive torque transmission and secure clamping, reducing the risk of slippage during slotting and improving concentricity.

Is this cutter appropriate for deep narrow slots?
The long version of the cutter with a 4 mm diameter and three flutes is designed for deeper grooves and narrow keyways while maintaining chip control.

What distinguishes this cutter from a standard end mill?
The combination of HSS‑Co8 material, three‑flute centre‑cutting geometry and a Weldon shank offers enhanced wear resistance, controlled chip formation and robust clamping compared with many standard end mills.

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