20mm Cylindrical Shank End Mill HSS-Co8 4 Flutes 52mm Effective Length, DIN 844 - TECWERK

Take advantage of a robust HSS‑Co8 construction and a short, rigid form for vibration‑free cutting in demanding shop environments; order directly via Metav Werkzeuge or consult our specialists for tailored delivery and stocking options.

End mill DIN 844 Type N, 20 mm – HSS‑Co8 short 4‑flute, Weldon shank (TECWERK)

The End mill DIN 844 Type N is a short, centre‑cut 4‑flute milling cutter with a Weldon shank, designed for secure clamping and stable performance in general workshop and industrial milling tasks.

• HSS‑Co8 high-speed steel for toughness
• Four-flute, centre-cut geometry for axial plunge
• Weldon shank with driving flat for secure clamping
• Short design for rigid, vibration‑free machining

Precise, wear‑resistant geometry for consistent metal removal

The cutter is manufactured to DIN 844 as a Type N short tool, combining HSS‑Co8 material with a four‑flute profile and centre‑cut capability. This combination delivers a balance of wear resistance and edge toughness, making the tool particularly effective for interrupted cuts and plunge operations. The geometry reduces radial forces and supports steady chip evacuation, which in turn increases process reliability and reduces the need for rework. The construction supports high‑quality finishes on ferrous materials while maintaining tool life in repetitive production runs.

Secure clamping and reduced vibration for repeatable accuracy

A Weldon shank with driving flat ensures positive transmission of torque and secure retention in holders designed for flat‑grip shanks. The short design and compact overhang minimise chatter and improve positional stability, which is essential when tight tolerances are required. With a 20 mm nominal diameter and an effective length of 52 mm, the tool is configured for rigid set‑ups where high stiffness and repeatable axial alignment matter. The right‑hand cut and solid fluting contribute to predictable cutting loads and a reliable surface quality on each pass.

Material suitability and machining guidance for robust performance

This cutter is very well suited for steel and cast iron, with conditional suitability for stainless steels and non‑ferrous alloys when parameters are adjusted. As supplied in uncoated HSS‑Co8, the tool is recommended for materials with tensile strengths up to approximately 800 N/mm²; coated variants extend that capability but are not present in this item. For best results, select conservative axial depths and ramping feeds when plunge milling; the centre‑cut geometry allows safe axial entry. Where higher hardness or extended tool life is required, consider a coated alternative or appropriate cutting fluids to support cooling and chip removal.

Order TECWERK end mills through Metav Werkzeuge for reliable European supply and expert advice on application parameters; contact the Metav team for stock and technical queries.

Technical Data

• Article number: 2000866342NW
• Standard: DIN 844
• Item name: End mill DIN 844 Type N, 20 mm, HSS‑Co8, short, 4‑flute, Weldon shank

Facts

• Diameter: 20 mm
• Overall length: 104 mm
• Cutting length: 4 mm
• Effective length: 52 mm
• Shank diameter: 20 mm
• Flutes: 4
• Free relief: 19 mm

Special features

• Material: HSS‑Co (HSS‑Co8)
• Centre‑cut geometry
• Weldon shank with driving flat
• Right‑hand cut
• Short design for high rigidity
• Uncoated
• Very good suitability: steel, cast iron
• Conditional suitability: non‑ferrous metals, stainless steel
• Designed for machining up to ~800 N/mm² in uncoated form

FAQ

Is this cutter suitable for axial plunging operations?
The End mill DIN 844 Type N has a centre‑cut geometry and four flutes, which allow controlled axial plunging and reduced risk of centre break‑out when used with appropriate feeds.

Which materials are best machined with this TECWERK shank cutter (SKU 2000866342NW)?
The tool is very well suited for steel and cast iron; stainless steels and non‑ferrous alloys are conditionally suitable with adjusted cutting parameters.

Does the tool come with a coating to increase hardness limits?
This specific item is supplied uncoated in HSS‑Co8; the uncoated condition is rated for applications up to approximately 800 N/mm² tensile strength.

What benefits does the Weldon shank provide in daily shop use?
The Weldon shank with driving flat secures the cutter against rotation in the holder, ensuring stable torque transmission and reduced slippage during heavier milling passes.

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