WNMG080408-RP5 WKK20S WKK20S Wendeplatten - Walter Tools

Take advantage of the combination of proven wear resistance, robust Trigon geometry and reliable chip control to keep turning operations productive and predictable; order directly via Metav Werkzeuge or ask the consultants for application support.

WNMG080408-RP5 WKK20S indexable turning insert, Trigon 80° – Tiger‑tec Silver, Walter Tools

WNMG080408-RP5 WKK20S is a Trigon 80° indexable turning insert designed for productive machining of cast iron, combining a Tiger‑tec Silver coating with a robust chipbreaker for stable, repeatable results.

• Tiger‑tec Silver coating for high wear resistance
• Optimised for cast iron (ISO K classification)
• Trigon 80° geometry with 0.8 mm corner radius

Reliable wear performance for cast‑iron production

The cutting grade WKK20S in the Tiger‑tec Silver series is formulated for cast iron applications (ISO K). The coated carbide grade resists the abrasive wear typical of grey and nodular cast irons and is engineered to handle the frequently short, breaking chips found in these materials. This yields a consistent tool life and reduced variance in regrind cycles, which in turn supports predictable production planning and lower process costs per component.

Geometry and chip control that stabilise turning cycles

The Trigon 80° plate form and the RP5 chipbreaker combine to deliver reliable chip formation and evacuation in interrupted or continuous cuts. The insert’s 0.8 mm corner radius increases edge strength and helps maintain surface finish on demanding cast‑iron parts, while the 0° (negative) rake angle prioritises edge stability under higher forces. Together these features reduce vibration, permit more aggressive feeds when appropriate, and contribute to fewer unplanned tool changes on the shop floor.

Practical dimensions and mounting for efficient handling

This indexable insert is supplied in the standard WNMG format (size 08, thickness 04), compatible with common toolholders for turning operations; tolerance class M ensures consistent fit and repeatable positioning when indexing corners. The combination of standard sizing and proven grade simplifies inventory management and allows for fast replacement during routine servicing. For production teams seeking stable performance in cast‑iron turning, the insert balances robustness with the ability to achieve good surface quality and repeatable tolerances.

For productive cast‑iron turning with Walter Tools’ Tiger‑tec Silver technology, contact Metav Werkzeuge for tailored application advice and availability at info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• SKU: WNMG080408-RP5-WKK20S-WALTER
• Article designation: WNMG080408-RP5 WKK20S
• Type: indexable turning insert
• Manufacturer: Walter Tools

Facts

• Plate size: 08
• Plate thickness: 04
• Corner radius: 0.8 mm
• Clearance angle: 0° (negative)
• Tolerance class: M

Special features

• Series: Tiger‑tec Silver
• Grade: WKK20S (coated carbide)
• Chipbreaker: RP5
• Applicable material group: cast iron (ISO K)
• Plate form: Trigon 80°

FAQ

What materials is this insert best suited for?
The WNMG080408-RP5 WKK20S is optimised for cast iron machining and is specified for ISO K material groups, offering improved wear resistance on abrasive cast‑iron grades.

How does the RP5 chipbreaker affect machining?
The RP5 chipbreaker on this Trigon insert produces short, controlled chips in cast‑iron turning, improving evacuation and reducing the risk of entanglement or surface damage.

Can this insert be indexed on standard holders?
Yes; the WNMG080408-RP5 format (size 08, thickness 04) fits widely used turning toolholders, and the tolerance class M supports repeatable indexing and stable clamping.

What operational advantage does the Tiger‑tec Silver coating provide?
Tiger‑tec Silver coating on the WKK20S grade increases resistance to abrasive wear common in cast iron, extending tool life and helping to maintain consistent cutting performance across batches.

Is the geometry suitable for interrupted cuts?
The Trigon 80° form, combined with a 0.8 mm corner radius and a negative 0° rake, gives enhanced edge strength and robustness for interrupted or heavy‑cut conditions in cast‑iron turning.

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

The Walter AG (brand appearance: Walter Tools) is one of the world’s leading manufacturers of precision tools for metalworking. Protected trademarks and trade names remain the property of their respective owners. Where referenced, brand names are used for explanatory purposes only; there is no affiliation between our company and the named brands. The offered item is an original, brand‑new product from the manufacturer.