CNMM120408-HU5 WSM20S WSM20S Wendeplatten - Walter Tools

The combination of a Tiger·tec Silver coated carbide grade and a robust 0.8 mm corner radius delivers secure chip control and long cutting-edge life when machining stainless steel and heat-resistant alloys; order directly via Metav Werkzeuge or consult the team for application-specific cutting data.

CNMM120408-HU5 WSM20S indexable turning insert — Tiger·tec Silver for stainless steel and superalloys (Walter Tools)

The CNMM120408-HU5 WSM20S is a rhombic 80° indexable turning insert engineered for heavy-duty machining of stainless steel (ISO M) and heat-resistant superalloys/titanium (ISO S), combining a Tiger·tec Silver coating with a HU5 chipbreaker for stable cutting.

• Coated carbide Tiger·tec Silver for longevity
• Negative 0° rake for strong cutting edges
• 0.8 mm corner radius for edge robustness
• Rhombic 80° geometry for versatile turning

Increased productivity through optimised coating and chip control

The Tiger·tec Silver coating on the coated carbide substrate gives the insert high thermal resistance and improved wear performance, which supports longer tool life and fewer indexings in continuous production. The integrated HU5 chipbreaker promotes predictable chip control, reducing interruptions caused by tangled chips and improving cycle-time reliability. For operations on stainless steel and similar tough-to-machine materials, the combination of coating and chipbreaker translates into steadier cutting forces and a more consistent surface finish, directly supporting process stability and lower overall machining costs.

Geometry designed for strength and versatile cutting performance

The rhombic 80° shape and 0° (negative) clearance angle prioritise edge strength and deflection resistance, making this insert suitable for heavier cuts and interrupted turning. The 0.8 mm corner radius contributes to a robust cutting edge that tolerates increased radial depth of cut while maintaining dimensional repeatability. The thickness rating (04) and insert size (12) provide a stable seating in standard toolholders, which reduces vibration and supports reproducible results across serial production. These geometric attributes make the insert a practical choice where durable performance matters more than minimal cutting forces.

Process efficiency and application-focused advantages

Selected for stainless steel and demanding alloy work, the grade WSM20S balances wear resistance and toughness to handle both build-up edge tendencies and high-temperature exposure at the cutting zone. The insert’s specification supports reliable part finish and less rework, which improves throughput in batch or continuous manufacturing. Additionally, the Tiger·tec Silver series is designed for broad material coverage, helping to simplify tooling inventories and standardise tooling strategies across different workpiece families while maintaining process security.

For tailored cutting parameters, toolholder recommendations and immediate supply of Walter Tools inserts, contact Metav Werkzeuge — info@metav-werkzeuge.com or call +49 2822 7131930 to discuss suitability for specific stainless steel or superalloy applications.

Technical data

• SKU: CNMM120408-HU5-WSM20S-WALTER
• Designation: CNMM120408-HU5 WSM20S
• Brand: Walter Tools
• Series: Tiger-tec Silver
• Grade: WSM20S
• Execution: M

Core data

• Insert shape: Rhombus 80°
• Inscribed circle / size: 12 mm
• Thickness: 04
• Corner radius: 0.8 mm
• Clearance angle: 0° (negative)
• Chipbreaker: HU5

Special features

• Coating: Tiger·tec Silver
• Substrate: coated carbide
• Suitable for: stainless steel (ISO M); heat-resistant superalloys and titanium (ISO S)
• Application focus: heavy-duty turning, interrupted cuts, high-temperature alloys

FAQ

What materials is this insert intended for?
The CNMM120408-HU5 WSM20S insert is specified for stainless steel (ISO M) and for heat-resistant superalloys and titanium (ISO S), providing a balance of heat resistance and edge stability.

How does the HU5 chipbreaker affect machining?
The HU5 chipbreaker promotes controlled chip formation and evacuation, improving process reliability and reducing downtime during operations with the CNMM120408-HU5 WSM20S insert.

What is the benefit of the 0° negative clearance angle?
A 0° negative clearance increases edge strength and resistance to chipping, making the insert suitable for heavier cutting conditions and interrupted cuts when using the CNMM120408-HU5 WSM20S.

Can this insert be used in automatic machining centres?
Yes, the insert’s coating and geometry are suited to automated turning applications where consistent tool life and surface quality are required with the CNMM120408-HU5 WSM20S.

Is the CNMM120408-HU5 WSM20S part of a recognised product series?
The insert belongs to the Tiger·tec Silver series, which is engineered for process reliability and broad material coverage in industrial turning tasks.

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

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