TNMG220416-MK5 WKK20S WKK20S Wendeplatten - Walter Tools

Benefit from the combination of Tiger‑tec Silver coating and the WKK20S cutting grade for dependable cast iron machining; the triangular 60° geometry with a 1.6 corner radius supports stable chip formation and consistent surface quality. Order the insert directly via Metav Werkzeuge or consult the experts for application-specific advice.

TNMG220416‑MK5 WKK20S indexable turning insert – Tiger‑tec Silver, Walter Tools

the TNMG220416‑MK5 WKK20S is an indexable turning insert engineered for cast iron turning operations, combining a robust geometry with a coated carbide grade for reliable production results

• Tiger‑tec Silver coating for long life
• WKK20S grade optimised for cast iron
• Triangle 60° form for strong cutting edges
• MK5 chipbreaker for controlled chips

Optimised for cast iron turning with reliable chip control

The insert is tailored for machining cast iron and benefits from the WKK20S grade within the Tiger‑tec Silver family, developed to resist abrasive wear and cope with short, breaking chips typical of grey and nodular cast irons. The integrated MK5 chipbreaker promotes predictable chip formation, which reduces interruption risks and supports continuous production flow. This technical combination yields a balance of tool life and process reliability that lowers unplanned downtime in series production.

Coating and grade extend tool life and maintain productivity

The Tiger‑tec Silver coating applied to the coated carbide substrate increases wear resistance and thermal stability during heavy intermittent cuts. As a result, cutting edge integrity is preserved over extended tool rotations, translating to fewer tool changes and better machine utilisation. For manufacturers seeking an economical yet durable solution, this cutting grade maintains performance across common cast iron grades while enabling consistent workpiece quality and repeatability.

Geometry that delivers dimensional stability and surface quality

The triangular 60° plate form provides three usable cutting edges and a rigid platform for interrupted cuts. With a corner radius of 1.6 and a negative relief of 0°, the geometry is designed to withstand higher radial forces while producing stable tool–workpiece contact. This leads to improved process stability and surface finish without sacrificing edge strength. The design is particularly beneficial in turning tasks requiring robust edge security and consistent dimensional results.

Practical application guidance and process advantages

The TNMG220416‑MK5 insert with MK5 chipbreaker is best applied where controlled chip flow and reliable wear behaviour are required in cast iron machining. The combination of grade and breaker supports effective swarf management and reduces the risk of chip-related downtime. For integration into existing tooling, the insert’s geometry and grade are suitable for standard turning toolholders designed for triangular inserts and deliver predictable performance across batch and single-piece production.

Contact Metav Werkzeuge today to discuss how Walter Tools’ Tiger‑tec Silver grade can improve cast iron turning efficiency; call +49 2822 7131930 or email info@metav-werkzeuge.com

Technical Data

• Article number: TNMG220416-MK5-WKK20S-WALTER
• Name: Drehwendeschneidplatte TNMG220416-MK5 WKK20S Walter Tools
• Designation: TNMG220416-MK5 WKK20S
• Manufacturer: Walter Tools

Facts

• Plate form: Dreieck 60°
• Corner radius: 1.6
• Relief angle: 0° (negativ)
• Size: 22
• Thickness: 04

Special features

• Series: Tiger‑tec Silver
• Grade: WKK20S (coated carbide)
• Chipbreaker: MK5
• Applicable material group: K (cast iron)
• Tolerance class: M
• Execution: G

FAQ

What materials is this insert designed for?
The TNMG220416‑MK5 WKK20S insert is designed primarily for machining cast iron; the WKK20S grade and Tiger‑tec Silver technology are tuned to handle abrasive wear and the short, breaking chips typical of these materials.

How does the MK5 chipbreaker affect machining?
The MK5 chipbreaker on this insert promotes controlled chip formation, improving swarf evacuation and reducing the likelihood of chip-related interruptions during cast iron turning.

Is this insert suitable for interrupted cuts?
Yes, the triangular 60° geometry combined with a 1.6 corner radius and a 0° negative relief offers robust edge strength and stability suited to interrupted cutting conditions.

How many cutting edges are available per insert?
The triangular form provides three usable cutting edges per insert, offering practical economy for serial turning applications.

Which series and coating does this insert use?
This insert belongs to the Tiger‑tec Silver series and uses the WKK20S coated carbide grade to enhance wear resistance and thermal stability.

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

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