CPMT09T308-FM4 WSM20S FM4 Wendeplatten - Walter Tools

Take advantage of the proven combination of heat-resistant Tiger·tec Silver coating, precise FM4 chip control and a robust Rhombic 80° geometry to maintain process reliability in demanding turning and drilling operations; order directly via Metav Werkzeuge or consult our advisors for application-specific selection.

CPMT09T308-FM4 WSM20S — Drilling / Turning Indexable Insert, Tiger·tec Silver, FM4

The CPMT09T308-FM4 WSM20S is a rhombic 80° indexable insert designed for heavy-duty machining of rostfreier Stahl and heat‑resistant alloys in demanding production environments

• Tiger·tec Silver coating for heat resistance
• FM4 chipbreaker for stable chip control
• Rhombic 80° shape with 0.8 mm corner radius
• Optimised for rostfreier Stahl and superalloys

Reliable performance on heat‑loaded materials

The WSM20S grade combines a Tiger·tec Silver coating with a coated carbide substrate to increase heat resistance and support stable cutting edges under thermal load. Designed for machining materials classified as M and S according to ISO 513, this insert supports the removal of tough, gummy materials such as rostfreier Stahl and high‑temperature superalloys. The metallurgical design of the grade promotes predictable wear behaviour and consistent tool life, helping to reduce unplanned tool changes and to sustain cycle times in series production.

Geometry and chip control that improve surface quality

The rhombic 80° geometry, paired with the FM4 chipbreaker and a 0.8 mm corner radius, provides controlled chip formation and a balanced cutting edge for mixed turning and boring operations. The modest 11° relief angle and T3 plate thickness contribute to a stable edge chunking resistance, while the chipbreaker design reduces the risk of long, stringy chips that jeopardise process security. Explained simply: the chipbreaker shapes chips into predictable segments, which improves chip control and supports more consistent surface finishes with lower secondary operations.

Process reliability, application scope and practical benefits

This insert is tailored for productive machining where material toughness and heat generation challenge tool life. As a coated carbide insert in the Tiger·tec Silver family, the component offers a reliable combination of wear resistance and edge stability that can translate into fewer indexings and steadier dimensional results. The design supports both drilling/reboring and turning tool systems that accept CPMT‑style inserts, making it a versatile choice for shops machining rostfreier Stahl and heat‑resistant alloys. Technical or application enquiries can be addressed through Metav Werkzeuge to ensure correct integration with holders and machining parameters.

For targeted tool selection and support with Walter Tools’ Tiger·tec Silver inserts, contact Metav Werkzeuge for tailored advice and quick delivery: info@metav-werkzeuge.com | +49 2822 7131930

Technical data

• Article number: CPMT09T308-FM4-WSM20S-WALTER
• Designation: CPMT09T308-FM4 WSM20S
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver

Facts

• Relief angle: 11°
• Corner radius: 0.8 mm
• Insert size: 09
• Thickness: T3
• Shape: Rhombic 80°
• Tolerance class: M

Special features

• Coating: Tiger·tec Silver
• Grade: WSM20S (coated carbide)
• Chipbreaker: FM4
• Material suitability: rostfreier Stahl; heat‑resistant superalloys and titanium
• Application: drilling, reboring and turning operations where stable chip formation is required

FAQ

Is this insert suitable for rostfreier Stahl?
The CPMT09T308-FM4 WSM20S is optimised for rostfreier Stahl (ISO group M) and provides enhanced heat resistance and edge stability for machining stainless alloys.

What advantage does the FM4 chipbreaker offer?
The FM4 chipbreaker on this Walter Tools insert shapes and segments chips to improve chip control and reduce entanglement, supporting safer, more consistent machining and better surface quality.

Which toolholders accept this insert?
The designation CPMT09 indicates a standard CPMT‑style rhombic 80° insert; compatible toolholders are those designed for CPMT09 inserts with T3 thickness and the corresponding clamping system.

How does the Tiger·tec Silver coating affect performance?
Tiger·tec Silver on the WSM20S grade increases thermal resistance and helps maintain a stable cutting edge under elevated temperatures, extending usable life and supporting repeatable performance.

Manufacturer: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen

Protected trademarks and trade names remain the property of their respective owners. Brand names and protected trademarks are mentioned solely for explanatory purposes and do not indicate any affiliation with Metav Werkzeuge. The offered article is original and factory‑new from the manufacturer.