WNMG080416-MK5 WKK20S WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of high wear resistance, controlled chip formation and robust trigon geometry for reliable cast iron turning—order directly via Metav Werkzeuge or consult our specialists for application advice.

WNMG080416-MK5 WKK20S – Turning indexable insert, Tiger‑tec Silver, for cast iron (Walter Tools)

A WNMG080416-MK5 WKK20S turning indexable insert engineered for productive machining of cast iron, featuring a Trigon 80° geometry and a MK5 chipbreaker for stable chip control.

• Tiger‑tec Silver coated carbide grade WKK20S
• Trigon 80° plate with 1.6 mm corner radius
• MK5 chipbreaker for controlled chip formation
• Optimised for cast iron machining

Consistent performance for abrasive cast iron applications

The coated carbide grade WKK20S, part of the Tiger‑tec Silver series, focuses on abrasion resistance and consistent edge life when machining cast iron. The composition and coating technology reduce flank and crater wear under repetitive conditions, which translates into longer service intervals and fewer index changes during production runs. With a coated carbide construction and a design tuned for short, brittle chips, the insert supports predictable tool life and process stability in heavy-duty turning tasks.

Geometry and chip control that increase process reliability

The Trigon 80° plate form combined with the MK5 chipbreaker provides mechanical strength at the cutting edge and efficient chip segmentation for cast iron’s often brittle swarf. The insert’s 1.6 mm corner radius enhances edge robustness, while the 0° (negative) rake angle contributes to a stable cutting edge under intermittent or interrupted cuts. These characteristics reduce the likelihood of edge chipping and support consistent surface finish, making the insert well suited to demanding production environments where repeatable results are essential.

Practical benefits and application guidance for production use

Specified as an indexable turning insert for cast iron, the design balances wear resistance with reliable chip evacuation to maintain cycle times and component quality. The combination of grade, chipbreaker and geometry yields lower downtime through fewer insert changes and simplified process parameter setup. For best results, select cutting speeds and feeds in line with cast iron recommendations and monitor edge condition; the insert’s properties make it particularly effective for batch production and series turning where consistent performance is required.

Contact Metav Werkzeuge for tailored application advice and current availability of Walter Tools WNMG080416-MK5 WKK20S inserts

Technical Data

• Article number: WNMG080416-MK5-WKK20S-WALTER
• Designation: WNMG080416-MK5 WKK20S
• Manufacturer: Walter Tools

Facts

• Plate form: Trigon 80°
• Corner radius: 1.6
• Plate size: 08
• Plate thickness: 04
• Rake/freestanding angle: 0° (negativ)
• Chipbreaker: MK5
• Grade/series: WKK20S / Tiger‑tec Silver
• Application indication: cast iron (ISO group K)
• Tolerance class: M

Special features

• Coated carbide grade WKK20S
• Tiger‑tec Silver coating technology
• Designed for abrasive wear in cast iron
• Robust trigon geometry for strength
• MK5 chipbreaker for controlled chips

FAQ

Which materials is this insert suitable for?
The WNMG080416-MK5 WKK20S insert is optimised for machining cast iron (ISO group K) and is designed to handle abrasive wear typical of those materials.

What are the main geometric characteristics of the insert?
This trigon-shaped insert features a Trigon 80° form, a 1.6 mm corner radius and a 0° (negative) rake angle for a strong cutting edge.

What role does the MK5 chipbreaker play?
The MK5 chipbreaker promotes reliable chip segmentation and evacuation when turning cast iron, improving process stability and surface quality.

How does the Tiger‑tec Silver coating benefit production?
The Tiger‑tec Silver coating increases wear resistance and edge life under abrasive conditions, supporting longer index intervals and more consistent machining results.

Is this insert suitable for interrupted cuts?
The combination of trigon geometry, a sturdy corner radius and the negative rake angle provides enhanced edge strength, making the insert suitable for many interrupted cutting scenarios.

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

Trademarks and trade names are the property of their respective owners. Protected brand names and product designations are mentioned for clarification purposes only; there is no affiliation between our company and the named brands. The offered item is an original, factory‑new product of the manufacturer.