20mm Cylindrical Shank End Mill HSS-Co5 52mm Effective Length 4 Flutes Right-Hand - TECWERK

Take advantage of the combination of durable HSS‑Co5 construction, short rigid design and a Weldon shank with drive flat for reliable, repeatable milling of steel and cast iron; order the tool directly via Metav Werkzeuge or contact our consultants for application advice.

End mill DIN 844 Typ NR, 20 mm HSS‑Co5 — TECWERK

End mill DIN 844 Typ NR, 20 mm HSS‑Co5 designed for short, high‑rigidity milling tasks in steels and cast materials

• HSS‑Co5 high‑performance material
• Weldon shank with drive flat
• 4‑flute geometry for smooth cutting
• Short, robust DIN 844 typology
• Centre‑cut for plunging operations

High‑performance material for consistent results

The tool is manufactured from HSS‑Co5, a cobalt‑alloyed high‑speed steel that delivers increased red‑hardness and wear resistance compared with standard HSS. This material choice provides a balance of toughness and heat resistance, reducing chipping in interrupted cuts. The combination of HSS‑Co5 and a multi‑flute geometry produces stable chip formation and helps maintain surface finish when machining medium‑strength steels and cast iron.

Rigidity and geometry tailored for accurate machining

The short design and DIN 844 Typ NR profile prioritise rigidity over reach, which reduces vibration and improves dimensional stability in slotting and face‑milling operations. The 4‑flute configuration increases the number of cutting edges in contact, yielding a finer finish and higher material removal rates at moderate feeds. A centre‑cut geometry allows safe plunging, so the cutter can be used for both peripheral milling and direct entry into the workpiece.

Secure clamping and reliable setup for production use

A Weldon shank with drive flat ensures positive torque transmission and repeatable seating in toolholders, simplifying tool changes and reducing runout risk. The relief‑ground core profile (relief‑ground flute profile) and the 45° chamfer on the cutting edge help guide chips away from the cutting zone and reduce edge stress. With right‑hand cutting, the tool matches standard spindle rotation and fixturing; the robust build supports demanding workshop routines while keeping setup efficient.

For precision milling with TECWERK HSS‑Co5 end mills, contact Metav Werkzeuge for stock availability and tailored machining recommendations at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 2000866434NW
• Standard: DIN 844
• Label: Schaftfräser DIN 844 Typ NR D.20mm Einsatz‑L.52mm HSS‑Co5 Weldon TW

Core dimensions

• Diameter: 20 mm
• Overall length: 104 mm
• Effective length: 52 mm
• Cutting length: 4 mm
• Shank diameter: 20 mm
• Relief grind / clearance: 19 mm

Design & material

• Material: HSS‑Co
• Cutting edges: 4
• Cutting direction: right‑hand cutting
• Weldon shank with drive flat
• Short, multi‑flute DIN 844 type
• Centre‑cut for plunging operations

FAQ

What materials is this end mill best suited for? The TECWERK End mill DIN 844 Typ NR (20 mm, HSS‑Co5) is very well suited for steel and cast iron and is conditionally suitable for non‑ferrous metals.

Can the tool be used for plunge milling? Yes, the centre‑cut geometry on the end mill allows safe plunging and direct entry into the workpiece for short‑reach operations.

What advantages does HSS‑Co5 offer over standard HSS? HSS‑Co5 in this cutter increases red‑hardness and wear resistance, improving performance under higher cutting temperatures and reducing the risk of edge chipping.

Is the shank compatible with standard toolholders? The Weldon shank with drive flat provides secure torque transmission and is compatible with holders designed for Weldon‑type shanks.

What DIN standard applies to the cutter? The cutter adheres to DIN 844, indicating a short, robust end mill profile suitable for demanding milling tasks.

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