3mm Milling Cutter for Drilled Keyways HSS-Co8 TiCN Coating, 5mm Effective Length DIN 327D - TECWERK

Take advantage of the combination of durable TiCN surface, HSS‑Co8 core and a secure Weldon shank for precise, repeatable slotting in steel and stainless steel; order directly via Metav Werkzeuge or consult the specialists for application advice.

Slot cutter DIN 327 D Type N Ø 3 mm – HSS‑Co8, TiCN, Weldon (TECWERK)

The Slot Cutter DIN 327 D Type N Ø 3 mm is a short, two‑flute, centre‑cutting tool designed for precise keyways and narrow fits in steels, stainless steels and cast materials

• HSS‑Co8 substrate with TiCN coating
• DIN 327 D Type N, centre cutting
• Weldon shank Ø 6 mm for secure clamping
• For precision keyways in steel and stainless steel

Durable coating and substrate for extended tool life

The combination of a HSS‑Co8 substrate with a TiCN coating provides measurable benefits in wear resistance and edge stability. The cobalt‑enriched high‑speed steel increases hot‑hardness and toughness, while the titanium carbonitride layer reduces friction and adhesion during slotting operations. This pairing extends service intervals and helps maintain dimensional accuracy over longer production runs. In practice, the coated two‑flute geometry gives consistent edge protection during intermittent cuts and reduces the risk of built‑up edge when machining stainless grades.

Designed for accurate narrow fits and keyways

Engineered to the DIN 327 D standard, the short Type N configuration with Ø 3 mm cutting diameter and centre cutting capability enables plunge starts and precise axial positioning for tight tolerances. The tool is specified for materials up to approx. 1000 N/mm² and is described as very well suited to steel, stainless steel and cast iron; non‑ferrous metals and special alloys are listed as conditionally suitable. The limited cutting length (2 mm) and effective length (5 mm) focus the cutting forces close to the clamp zone, improving rigidity and accuracy when producing deep, form‑accurate slots and keyways.

Secure clamping and practical workshop use

A Weldon shank Ø 6 mm with drive flat simplifies secure retention in holders and collets, reducing slippage under intermittent axial load. The two‑flute design promotes reliable chip evacuation in slotting operations and the short overall length (49 mm) reduces the tendency to chatter on smaller milling machines. For workshop practice, the short variant offers a balance between accessibility and stiffness, making it suitable for toolrooms and production environments where repeatability and surface integrity are priorities. Routine inspection of the coated cutting edges and correct holder clamping will ensure consistent performance.

For application planning and availability of the TECWERK slot cutter with TiCN coating, contact Metav Werkzeuge for specification guidance and delivery from our Emmerich quality hub.

Technical data

• SKU: 2000866106NW
• Standard: DIN 327 D
• Manufacturer: TECWERK
• Product type: Slot cutter (Bohrnutenfräser)

Core measurements

• Cutting diameter: 3 mm
• Overall length: 49 mm
• Cutting length: 2 mm
• Effective length: 5 mm
• Shank diameter: 6 mm
• Number of flutes: 2

Features & suitability

• Material: HSS‑Co8 (cobalt high‑speed steel)
• Coating: TiCN (titanium carbonitride)
• Type: D, Type N, short version
• Centre cutting for plunge starts
• Weldon cylindrical shank with drive flat
• Right‑hand cutting direction
• Application: milling narrow, form‑accurate fits and keyways
• Suitable for materials up to ~1000 N/mm²
• Material suitability: steel very good, stainless steel very good, cast iron very good, non‑ferrous metals conditionally suitable, special alloys conditionally suitable
• Packaging unit: 1 piece

FAQ

Is this cutter suitable for plunge milling into stainless steel?
The slot cutter is centre cutting, so it permits plunge entry; the HSS‑Co8 substrate with TiCN coating is rated very good for stainless steel and supports plunge operations when correct feeds and coolant are applied.

Which shank holders are compatible with the tool?
The tool features a Weldon shank Ø 6 mm and is intended for Weldon‑style holders or suitable collet chucks that accept a 6 mm shank with drive flat.

Can the cutter machine deep keyways or is it limited to shallow slots?
As a short Type N slot cutter with 2 mm cutting length and 5 mm effective length, it is optimised for narrow and deeper keyways where rigidity and accuracy are required rather than very deep, high‑aspect ratio slots.

What advantages does the TiCN coating provide?
The TiCN coating lowers friction and increases surface hardness, improving wear resistance and reducing built‑up edge when machining challenging materials such as stainless steels.

How is material suitability described for different alloys?
The tool is specified as very well suited for steel, stainless steel and cast iron; non‑ferrous metals and special alloys are indicated as conditionally suitable and may require parameter adjustment.

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