CNMG190612-RM5 WMP20S WMP20S Wendeplatten - Walter Tools

The combination of the Tiger‑tec Silver coating and the WMP20S carbide grade delivers stable chip formation and extended tool life for machining stainless steel, while the rhombic 80° geometry with a 1.2 mm nose radius ensures reliable surface quality and tool strength; order directly via Metav Werkzeuge or consult the specialists for application advice.

CNMG190612-RM5 WMP20S Turning insert — Tiger‑tec Silver coated carbide for stainless steel, Walter Tools

The CNMG190612-RM5 WMP20S is a coated indexable turning insert by Walter Tools, designed for dependable performance when machining stainless steel under medium to robust cutting conditions

• Tiger‑tec Silver coated carbide WMP20S
• Optimised for stainless steels (ISO M)
• Rhombic 80° shape, 1.2 mm nose radius
• Negative 0° relief, stable chip control RM5

Consistent performance when machining stainless steel

The Tiger‑tec Silver coating combined with the WMP20S grade results in a coated carbide substrate engineered for high thermal and mechanical loads typical of stainless steel (ISO M) machining. The special coating supports stable chip formation and reduces the tendency for built‑up edge, which commonly shortens tool life in austenitic and duplex alloys. The outcome is a predictable process window, fewer unscheduled tool changes and more consistent component quality — advantages that translate directly into better machine uptime and lower part costs.

Geometry that balances strength and surface finish

The rhombic 80° insert form with a 1.2 mm nose radius and negative 0° relief gives a robust cutting edge that resists chipping while still allowing access on close contours and interrupted cuts. The RM5 chipbreaker is tuned for controlled fragmentation of tough, ductile chips produced by stainless steels, improving swarf evacuation and reducing nose wear. This geometry combination supports repeatable surface finishes and helps maintain dimensional accuracy over longer series runs.

Improved process efficiency and predictable productivity

Using a grade and coating optimised for stainless steels reduces downtime for edge dressing and tool replacement; the result is measurable savings across production batches. The coated WMP20S inserts deliver a balance between tool life and consistent cutting action, supporting higher feed stability and fewer secondary operations. Backed by the Walter Tools engineering approach, the insert offers process reliability that helps stabilise production costs and supports justifiable tool change intervals in a mixed production environment.

Application guidance and practical benefits

These inserts are suited for facing, external turning and semi‑finishing where stainless steel workpieces demand secure chip control and resistance to thermal softening. For roughing operations with heavier depths of cut the robust geometry and chip control contribute to safe material removal; for finishing passes the fine nose radius helps achieve the desired surface quality. If additional guidance is required, Metav Werkzeuge’s consultants can provide application tips and match the insert to appropriate clamping systems and cutting data.

For reliable stainless steel turning with Walter Tools’ Tiger‑tec Silver WMP20S inserts, contact Metav Werkzeuge for tailored application advice and fast supply: info@metav-werkzeuge.com / +49 2822 7131930

Technical data

• SKU: CNMG190612-RM5-WMP20S-WALTER
• Designation: CNMG190612-RM5 WMP20S
• Product type: Turning insert
• Manufacturer: Walter Tools
• Series: Tiger‑tec Silver

Core specifications

• Size: 19
• Thickness: 06
• Nose radius: 1.2 mm
• Relief angle: 0° (negative)
• Shape: Rhombic 80°
• Chipbreaker: RM5

Features & applications

• Coating: Tiger‑tec Silver
• Grade: WMP20S (coated carbide)
• Suitable for: stainless steel (ISO M)
• Typical use: medium to robust cutting conditions
• Family: Tiger‑tec Silver series

FAQ

What materials is this insert designed for?
The CNMG190612-RM5 WMP20S insert by Walter Tools is developed primarily for stainless steel workpieces (ISO M), offering controlled chip formation and stable cutting under medium to robust conditions.

How does the RM5 chipbreaker affect performance?
The RM5 chipbreaker on this insert promotes predictable chip fragmentation during stainless steel machining, improving swarf control and reducing the risk of built‑up edge on the cutting face.

Is the geometry suitable for both roughing and finishing?
Yes; the rhombic 80° form with a 1.2 mm nose radius provides the strength required for heavier cuts while maintaining the capability to produce acceptable surface quality on finishing passes.

Can this insert be used in interrupted cuts or heavy engagement?
The negative 0° relief and robust coated carbide grade support use in intermittent turning and heavier engagements, where edge stability and resistance to chipping are important.

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

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