TNMG160404-MK5 WKK20S WKK20S Wendeplatten - Walter Tools

The combination of a robust WKK20S grade and the MK5 chipbreaker delivers consistent chip control and long tool life for cast iron turning; the triangular 60° geometry and 0.4 mm corner radius support precise, repeatable operations. Order genuine Walter Tools inserts via Metav Werkzeuge or contact our consultants for application advice.

TNMG160404-MK5 WKK20S — Indexable turning insert, Tiger‑tec Silver, for cast iron | Walter Tools

The TNMG160404-MK5 WKK20S is a triangular indexable insert engineered for productive, abrasion‑resistant turning of cast iron components in industrial machining.

Tiger‑tec Silver coating for durability
Optimised MK5 chipbreaker for stable chips
Triangular 60° form for versatile turning
Suited to cast iron machining (ISO group K)

Reliable chip control and extended tool life

The combination of the MK5 chipbreaker with the Tiger‑tec Silver technology produces stable, short chips and reduces abrasive wear when machining cast iron. As a coated carbide grade, WKK20S is formulated for the characteristic, brittle chips and high abrasion of grey and nodular cast irons; this results in fewer interruptions, longer effective edge life and higher process reliability. The design emphasises consistent performance under the typical conditions of heavy‑duty turning, so machining cycles remain productive and predictable.

Accurate geometry for repeatable turning

A triangular 60° form with an inscribed circle of 16 mm, a thickness of 4.00 mm and a corner radius of 0.4 mm provides a balance between strength and finishing capability. The 0° relief (negative) rake increases edge robustness for interrupted cuts and roughing passes while the defined corner radius supports reproducible surface quality on turned components. Together, these geometric parameters simplify setup and enable repeatable part tolerances in batch production without frequent tool interventions.

Built for demanding cast iron production

Tolerance class M and the proven Walter Tools gradeing assure consistent indexable insert dimensions and edge quality across batches. The WKK20S grade targets abrasive‑wear resistance, making this insert suitable for series turning where predictable tool life and surface integrity matter. Using this insert in a stable toolholder and matched cutting data reduces downtime, enhances throughput and supports a cost‑efficient machining strategy for cast iron workpieces.

For tailored application advice and to secure genuine Walter Tools Tiger‑tec Silver TNMG160404‑MK5 WKK20S inserts for cast iron machining, contact Metav Werkzeuge GmbH by e‑mail at info@metav-werkzeuge.com or by phone at +49 2822 7131930 — our consultants will assist with grade selection and stock availability.

Technical data

• Article number: TNMG160404-MK5-WKK20S-WALTER
• Designation: TNMG160404-MK5 WKK20S
• Product type: Indexable turning insert
• Manufacturer: Walter Tools

Core data

• Inscribed circle: 16 mm
• Thickness: 4.00 mm
• Corner radius: 0.4 mm
• Shape/angle: Triangle 60°
• Relief angle: 0° (negative)
• Tolerance class: M

Special features

• Series: Tiger‑tec Silver
• Grade: WKK20S
• Chipbreaker: MK5
• Material group: K (cast iron)
• Form: TNMG triangular insert
• SKU: TNMG160404-MK5-WKK20S-WALTER

FAQ

What materials is this insert best suited for?
This insert is optimised for cast iron machining (ISO group K); the WKK20S grade and Tiger‑tec Silver coating resist abrasive wear typical of cast materials.

What advantage does the MK5 chipbreaker offer?
The MK5 chipbreaker creates short, controlled chips and improves heat evacuation and surface stability when using the TNMG160404‑MK5 insert on cast iron.

Which geometric data define this insert?
The insert is triangular 60° with a 16 mm inscribed circle, 4.00 mm thickness and a 0.4 mm corner radius; the relief is 0° (negative) for a robust cutting edge.

Is this insert suitable for interrupted cuts?
Yes — the negative rake and wear‑resistant WKK20S grade make the insert well suited to interrupted and heavy turning operations on cast iron.

How can the SKU be used to order the correct item?
Order or reference SKU TNMG160404‑MK5‑WKK20S‑WALTER to ensure the correct Tiger‑tec Silver triangular insert is supplied.

Manufacturer/Responsible: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany

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