5mm Mini Slot Cutter HSS-Co8 3-Flute Long With Weldon Shank, Centre Cut - TECWERK

Benefit from the HSS‑Co8 high‑cobalt grade together with a 5 mm cutting diameter and a long three‑flute geometry featuring a Weldon shank for secure drive; designed for slot milling in steel and cast iron up to around 800 N/mm². Order the tool directly via Metav Werkzeuge or consult the specialists for tailored technical advice.

TECWERK Mini slot milling cutter D 5 mm – HSS‑Co8, Weldon shank, 3‑flute, long

TECWERK Mini slot milling cutter D 5 mm HSS‑Co8 is a long, three‑flute slotting cutter engineered for precise slot milling in steel and cast iron

• HSS‑Co8 high‑cobalt grade for wear resistance
• Long 3‑flute geometry with centre cutting
• Weldon shank with drive flat, 6 mm shank Ø
• Suitable for steel and cast iron up to 800 N/mm²

Consistent cutting performance for small slots

The TECWERK mini slot milling cutter combines a 5 mm cutting diameter with a 3‑flute long geometry that balances chip evacuation and surface finish. The high‑cobalt composition (HSS‑Co8) increases heat resistance and maintains hardness under the higher temperatures of intermittent slotting operations, which extends service life and reduces tool changes. The tool’s centre cutting capability permits controlled plunging and fast entry into workpieces, making it suitable for short‑run production and repair tasks where access is limited.

Secure mounting and accurate torque transmission

A Weldon shank with a drive flat ensures the tool remains fixed under torque, preventing slippage in set‑screw toolholders and enhancing repeatability. The 6 mm shank diameter provides compatibility with common small‑tool holders and improves concentricity during rotation, which lowers runout and produces a more consistent slot width. These mechanical advantages directly reduce scrap rates and the need for rework when machining narrow grooves or keyways.

Clear guidance on material suitability and limits

The cutter is specified for slotting of low to medium strength materials up to approx. 800 N/mm², performing very well in steel and cast iron while being conditionally suitable for stainless steel and various non‑ferrous alloys. The right‑hand cutting geometry supports standard feed directions and predictable chip formation. For best outcomes, select cutting parameters that reflect the workpiece material and the cutter’s geometry; the high‑cobalt grade assists in maintaining edge integrity when encountering tougher microstructures.

Practical benefits for workshop flexibility

Longer flute length and the compact slotting profile make this tool particularly useful for repair work, prototype milling and operations where reach and precision are essential. The three‑cutting‑edge design reduces radial forces compared with higher‑flute variants, which helps preserve fixture stability in small setups. Overall, the combination of long geometry, robust shank connection and HSS‑Co8 composition delivers a dependable tool that supports shorter lead times and lower tooling overheads for workshops and maintenance departments.

Contact Metav Werkzeuge today to secure the TECWERK mini slot milling cutter with specialist ordering support and technical guidance via info@metav-werkzeuge.com or by phone at +49 2822 7131930

Technical data

• Article number: 2000866052NW
• Label: Minibohrnutenfräser D.5mm HSS‑Co8 Weldon Z.3 lang TECWERK
• Manufacturer: TECWERK

Core specifications

• Cutting diameter: 5 mm
• Shank diameter: 6 mm
• Flutes: 3
• Material grade: HSS‑Co8
• Application strength range: up to approx. 800 N/mm²

Materials & features

• Centre cutting (plunge capable)
• Weldon shank with drive flat (cylindrical shank with drive area)
• Right‑hand cutting
• Very well suited: steel, cast iron
• Conditionally suitable: stainless steel (INOX), non‑ferrous metals
• Application: slot milling of low to medium strength materials

FAQ

Is this cutter suitable for plunge milling into a workpiece?
Yes. The TECWERK mini slot milling cutter features a centre cutting design that permits controlled plunging for short, accurate entries into the workpiece.

Can the tool machine stainless steel (INOX) effectively?
The cutter is conditionally suitable for stainless steel; the HSS‑Co8 grade gives improved heat resistance, but cutting parameters should be adapted and tested for optimised results.

What ensures the tool does not rotate in the holder under load?
The Weldon shank with a drive flat provides positive torque transmission and prevents slippage when secured with a set screw in the toolholder.

For which materials is the cutter primarily designed?
The tool is primarily designed for steel and cast iron, where it is rated as very well suited for slotting operations up to around 800 N/mm².

How many flutes does the cutter have and what does that mean for chip removal?
The cutter has three flutes, which offer a balance between chip evacuation and surface finish—suitable for narrow slots and applications requiring moderate material removal rates.

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