WNMG080408-RM5 WMP20S WMP20S Wendeplatten - Walter Tools

Take advantage of the combination of the Tiger‑tec Silver coating and the WMP20S grade for reliable performance when machining stainless steel; the Trigon 80° geometry with a 0.8 mm corner radius and RM5 chipbreaker provides stable cutting and predictable tool life — order directly via Metav Werkzeuge or contact the technical consultants for tailored advice.

WNMG080408-RM5 WMP20S indexable turning insert, Trigon 80°, Tiger‑tec Silver – Walter Tools

The WNMG080408-RM5 WMP20S is a trigon-shaped indexable turning insert designed for machining stainless steel under medium to robust cutting conditions, combining a coated carbide grade and a chipformer for secure chip flow and consistent edge life

• Tiger‑tec Silver coated grade WMP20S
• Optimised for stainless steel (M)
• Trigon 80° insert geometry
• 0.8 mm corner radius for robust cutting
• RM5 chipbreaker for secure chip control

Durable coating for extended cutting performance

The combination of the Tiger‑tec Silver coating and the WMP20S carbide grade delivers enhanced wear resistance and stable cutting edges when working with stainless steel. This coating technology reduces adhesion and thermal degradation at the cutting zone, which helps to maintain a consistent edge over repeated indexings. For production environments where edge stability and repeatable results are priorities, this insert offers a measurable improvement in process reliability without sacrificing surface quality. The design supports safer chip formation, which in turn reduces the risk of built-up edge and unplanned interruptions.

Geometry that improves control and reduces risk

With a Trigon 80° profile and a 0.8 mm corner radius, the insert provides a balance between strength and accessibility for turned features. The RM5 chipbreaker is tuned to encourage short, controllable chips when machining tough alloys, while the 0° negative rake enhances cutting edge robustness for interrupted or heavier cuts. These geometrical choices translate into fewer regrinds, lower vibration sensitivity and more consistent component tolerances during extended runs. The resultant stability also supports predictable tool-change intervals and smoother shop-floor planning.

Practical benefits for process efficiency

As an indexable insert, the component simplifies tool management: fewer inserts are required compared with brazed tools, and a rapid index or replacement restores cutting performance without extensive downtime. The coated grade minimises the frequency of interventions and supports production targets with steady part quality. For procurement and inventory strategies, the standardised ISO designation allows straightforward cross-referencing and compatibility checks with established toolholder systems, enabling faster tool set-up and reduced machine idle time.

Application fit and machining advice

Specified for ISO group M materials, this insert is particularly suited to stainless steel, which typically exhibits toughness, work hardening and higher heat generation at the cutting edge. The WMP20S grade and the insert’s chip control features are intended to mitigate these challenges by promoting stable chip formation and protecting the cutting edge against adhesion. For practitioners working in component manufacturing where stainless alloys are common, the insert offers a balance of edge life and surface finish that supports both medium and more demanding machining tasks.

For tailored technical guidance on Walter Tools inserts such as the WNMG080408-RM5 WMP20S and to arrange supply through Metav Werkzeuge, please contact Metav Werkzeuge GmbH at info@metav-werkzeuge.com or call +49 2822 7131930 for prompt support and ordering.

Technical data

• Article number: WNMG080408-RM5-WMP20S-WALTER
• Designation: WNMG080408-RM5
• ISO designation: WNMG080408-RM5 WMP20S
• Manufacturer: Walter Tools
• Grade: WMP20S
• Series: Tiger‑tec Silver

Core specifications

• Insert geometry: Trigon 80°
• Corner radius: 0.8 mm
• Clearance angle: 0° (negative)
• Plate size: 08
• Plate thickness: 04
• Chipbreaker: RM5
• Execution: G
• Material code: M

Materials & special features

• Coating technology: Tiger‑tec Silver
• Suitable for: stainless steel (ISO group M)
• Designed for: medium to robust machining conditions
• Stable chip formation and edge life
• Indexable turning insert format

FAQ

What materials is this insert suitable for?
The WNMG080408-RM5 WMP20S is specified for stainless steel (ISO group M) and is optimised to handle the toughness and heat sensitivity typical of these alloys.

What are the main benefits of the Tiger‑tec Silver WMP20S grade?
Tiger‑tec Silver in the WMP20S grade offers improved wear resistance and adhesion control, enabling the insert to keep a stable cutting edge and consistent performance in stainless steel applications.

Which geometry and chip control features does the insert have?
This indexable insert features a Trigon 80° shape, 0.8 mm corner radius, 0° negative rake and an RM5 chipbreaker, which together support secure chip control and enhanced edge strength.

Is the insert intended for finishing or roughing operations?
The WMP20S grade and the insert geometry are designed for medium to robust cutting conditions; they provide a compromise between durability for heavier cuts and the capacity to deliver acceptable surface quality for semi-finishing tasks.

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

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