20mm Slot Drill DIN 327 Type N HSS-Co8 TiCN 3-Flute Short Weldon 19mm Relief - TECWERK

Take advantage of a compact, HSS‑Co8 construction with TiCN coating and a rigid Weldon shank for precise, repeatable keyway milling — ideal where short cutters and centre cutting capability are required; order directly via Metav Werkzeuge or request consultancy if needed.

Keyseat cutter DIN 327 Type N D20 mm, HSS‑Co8, TiCN – short, 3‑flute (TECWERK)

A Keyseat cutter DIN 327 Type N D20 mm designed for milling deep keyways, end‑face and peripheral slots in steel, stainless steel and cast iron with a short, centre‑cutting geometry

• HSS‑Co8 body with TiCN coating
• Short 3‑flute design, centre cutting
• Weldon shank with drive flat 20 mm
• Very good for steel and stainless steel

Precise keyway milling with predictable performance

The short, Type N geometry following DIN 327 ensures stable cutting when producing deep keyways and narrow slots. The 3‑flute layout with a centre‑cutting blade permits plunge milling and axial entry, reducing setup complexity for both end‑face and peripheral operations. The cutter’s mechanics deliver consistent chip evacuation and controlled cutting forces, which translates into accurate slot profiles and repeatable tolerances across batches. Where material strength is critical, the tool is specified for operations up to 800 N/mm² with uncoated geometry and up to 1000 N/mm² when the surface is TiCN coated, offering a measurable basis for process planning.

Stable clamping and reduced vibration for high repeatability

A Weldon shank with a 20 mm diameter and drive flat provides secure axial and radial retention in standard holders, minimising slippage during interrupted cuts. With an overall length of 88 mm and an effective length of 36 mm, the short variant reduces overhang and thus lowers deflection when compared with longer cutters. The free relief length of 19 mm contributes to a clean cutting edge zone, while the centre‑cutting capability enables accurate positioning without additional pilot drills. These mechanical characteristics improve first‑pass yields and reduce rework, making setup times shorter and production more predictable.

Coating and substrate engineered for longevity and higher feed rates

Constructed from HSS‑Co8, the cutting body combines toughness with hot‑hardness; the TiCN coating raises surface hardness and improves resistance to abrasive wear and built‑up edge. The result is extended tool life under demanding conditions and the ability to exploit higher cutting speeds where machine rigidity allows. Application suitability is clearly defined: very good for steel, stainless steel and cast iron, while non‑ferrous materials and special alloys are conditionally applicable. For engineers planning tool changes, this stability and coating synergy reduce changeover frequency and lower overall production cost per feature.

Contact Metav Werkzeuge today for tailored machining advice and to secure the TECWERK keyseat cutter for reliable keyway milling — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 2000866220NW
• Standard: DIN 327
• Type: Type N, short, centre cutting
• Flutes: 3
• Coating: TiCN
• Material: HSS‑Co8
• Shank: Weldon
• Manufacturer: TECWERK

Facts

• Diameter: 20 mm
• Shank diameter: 20 mm
• Overall length: 88 mm
• Effective length: 36 mm
• Free relief length: 19 mm
• Cutting length: 3 mm
• Cutting direction: right‑hand
• Number of flutes: 3

Special features

• Designed for milling keyways and slots (end‑face and peripheral milling)
• Centre cutting for plunge and axial entry
• Suitable for steel, stainless steel and cast iron (very good)
• Conditionally suitable for non‑ferrous metals and special alloys
• Rated for up to 800 N/mm² uncoated, up to 1000 N/mm² when coated
• Short design reduces overhang and deflection
• Weldon shank for secure clamping and repeatability

FAQ

What materials is this cutter best suited for?
The TECWERK keyseat cutter is rated very good for steel, stainless steel and cast iron; non‑ferrous metals and special alloys are conditionally suitable depending on machining parameters.

Does the TiCN coating significantly extend tool life?
Yes, the TiCN coating increases surface hardness and wear resistance, enabling longer tool life and improved performance at higher cutting speeds with the TECWERK keyseat cutter.

Can the cutter be used for plunge milling into a bore?
The centre‑cutting Type N geometry permits plunge entry and is designed for axial milling operations such as keyways and slots.

What shank and holder compatibility is required?
The cutter features a Weldon shank with a 20 mm diameter and drive flat, requiring a compatible Weldon holder for secure clamping and optimal repeatability.

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