WNMG060412-MK5 WKK20S WKK20S Wendeplatten - Walter Tools

The combination of a Tiger·tec Silver coating and the WKK20S grade delivers abrasion resistance and reliable chip control for cast iron machining; paired with the Trigon 80° geometry this supports stable seating and predictable tool life. Order the WNMG060412‑MK5 WKK20S turning insert directly via Metav Werkzeuge or consult the technical team for application advice.

WNMG060412‑MK5 WKK20S Trigon 80° turning insert for cast iron, 0° negative — Walter Tools

A WNMG060412‑MK5 WKK20S turning insert designed for efficient, robust machining of cast iron components in production and job‑shop environments.

• Tiger·tec Silver coating for abrasion resistance
• Optimised for cast iron machining
• Trigon 80° geometry for secure seating
• MK5 chipbreaker with 1.2 mm corner radius

Improved process stability for abrasive materials

The combination of the WKK20S grade with the Tiger·tec Silver coating is tailored to the abrasive wear typical of cast iron. This results in stable chip formation and reduced edge degradation under interrupted cuts common when machining cast components. The specified grade balances toughness and wear resistance, which helps maintain cutting-edge geometry for longer periods and reduces the frequency of tool changes, supporting continuous production runs and predictable process windows.

Predictable seating and clamping for secure turning

The Trigon 80° insert form offers a positive mechanical seat in toolholders, providing enhanced stability under turning forces. With a 0° negative relief angle, the geometry is suited to robust, heavy‑cut operations where axial and radial load transfer to the toolholder must be controlled. This means fewer vibrations and improved surface consistency on workpieces, delivering measurable improvements in throughput and reduced rework compared with less rigid geometries.

Chip control and edge preparation that aid productivity

Equipped with the MK5 chipbreaker and a 1.2 mm corner radius, this indexable insert promotes controlled, short chips that evacuate reliably from the cutting zone when processing cast iron. Short, consistent chips reduce the risk of tangling and machine downtime; the corner radius also contributes to edge strength, making the tool more tolerant of minor variances in clamping or workpiece runout. In practical terms, this supports higher material removal rates while maintaining component finish quality.

Application guidance and integration into production

The insert is specified for the machining of cast iron (ISO group K) and suits operations where efficient, repeatable performance is required. The format and chipbreaker are compatible with common WNMG toolholders used in turning centres and lathes. For implementation, select cutting parameters that match the grade’s balance of wear and toughness and ensure appropriate coolant and chip evacuation strategies; the insert’s coating assists in heat and abrasion management, contributing to consistent tool life across batch sizes.

Contact Metav Werkzeuge to discuss the WNMG060412‑MK5 WKK20S insert application and availability or to request tailored cutting data from the technical team at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical data

• Article number: WNMG060412‑MK5‑WKK20S‑WALTER
• Label: Drehwendeschneidplatte WNMG060412‑MK5 WKK20S Walter Tools
• SKU: WNMG060412‑MK5‑WKK20S‑WALTER
• Series: Tiger‑tec Silver
• Grade: WKK20S
• Chipbreaker: MK5
• Form: Trigon 80°
• Relief angle: 0° (negative)
• Corner radius: 1.2 mm
• Size: 06
• Thickness: 04
• Tolerance class: M
• Execution: G
• Material designation: K (cast iron)

Facts

• Suitable material group: cast iron (ISO K)
• Designed for abrasive wear typical of cast materials
• Balanced toughness for interrupted and continuous cuts
• Trigon form for secure seating and stable clamping
• Short, controllable chip formation with MK5 chipbreaker

Special features

• Coating technology: Tiger·tec Silver
• Application focus: cast iron machining
• Manufacturer brand: Walter Tools
• Indexable turning insert type: WNMG060412‑MK5 WKK20S
• Typical use: production and job‑shop turning operations

FAQ

What materials is this insert suitable for?
The WNMG060412‑MK5 WKK20S insert is specified for cast iron (ISO group K) and is optimised to handle the abrasive wear and chip characteristics of these materials.

How does the Tiger·tec Silver coating benefit tool life?
The Tiger·tec Silver coating on the WNMG060412‑MK5 improves abrasion resistance and heat management, contributing to longer, more consistent cutting edge life when machining cast iron.

What does the Trigon 80° form provide in practice?
The Trigon 80° geometry ensures secure seating in compatible toolholders and enhances rigidity, which helps reduce vibration and improve surface finish during turning operations.

Is the MK5 chipbreaker suitable for interrupted cuts?
Yes, the MK5 chipbreaker combined with the grade’s toughness produces short, manageable chips and a strong cutting edge, making it suitable for interrupted and unstable cutting conditions.

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

Protected trademarks and trade names are the property of their respective owners. Mention of brand names such as Walter Tools is for identification purposes only; no affiliation with the named manufacturers is implied. The offered article is an original, factory‑new product of the stated brand.