CPMT050204-FM4 WSM20S FM4 Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating, the WSM20S grade and the FM4 chipbreaker to secure consistent machining of stainless steels and heat-resistant alloys; the result is dependable edge life and stable chip formation for uninterrupted production. Order original Walter Tools inserts directly via Metav Werkzeuge or consult our technical advisers for application-specific recommendations.

CPMT050204-FM4 WSM20S — Indexable insert for drilling and turning, Tiger·tec Silver, Walter Tools

the CPMT050204-FM4 WSM20S indexable insert for drilling/enlargement and turning provides a robust solution for hard-to-machine stainless steels and superalloys

• Tiger·tec Silver coating for extended wear resistance
• WSM20S grade optimised for stainless and superalloys
• FM4 chipbreaker for stable chip control
• Rhombus 80° geometry for secure entry and versatility

Reliable performance with high-temperature alloys and stainless steels

The combination of a coated carbide grade and a modern chipbreaker yields measurable production benefits: consistent edge stability and reduced tool changes. The WSM20S grade, part of the Tiger·tec Silver family, is designed to resist the thermal and adhesive stresses typical of ISO group M (rostfreie Stähle) and S (heat-resistant superalloys and titanium). This results in improved process security and more predictable tool life, which in turn increases productivity and lowers the risk of unplanned downtime. The coating enhances wear resistance while maintaining cutting-edge integrity under elevated temperatures.

Geometry and chip control that protect the component surface

A well‑matched geometry directly affects surface finish and dimensional repeatability. The rhombus 80° form together with an 11° relief angle and a 0.4 mm corner radius provides a controlled cutting engagement and reduced vibration during interrupted or entry cuts. The FM4 chipbreaker is tuned for reliable chip shaping and evacuation, lowering the chance of built-up edge and minimising rework. For turning and bore‑enlargement operations, this geometry supports stable tool paths, contributing to consistent part quality and reduced cycle variability.

Practical application guidance and process benefits

Use this insert for operations demanding thermal stability and secure chip formation: medium‑to‑high cutting speeds in stainless steels and when machining nickel‑ or cobalt‑based alloys. The robust grade and chip control reduce flank wear and edge chipping, translating into longer intervals between re‑grinds or insert changes. Where surface integrity and repeatability are critical, the Tiger·tec Silver technology delivers both tool life and process reliability, supporting leaner setups and higher first‑pass yields.

Contact Metav Werkzeuge for tailored application advice and to secure original Walter Tools CPMT050204-FM4 WSM20S inserts with Tiger·tec Silver technology

Technical data

• Article number: CPMT050204-FM4-WSM20S-WALTER
• SKU: CPMT050204-FM4-WSM20S-WALTER
• Designation: CPMT050204-FM4 WSM20S
• Manufacturer: Walter Tools

Dimensions & angles

• Relief angle: 11°
• Corner radius: 0.4 mm
• Shape: Rhombus 80°
• Size code: 05
• Thickness code: 02
• Tolerance class: M

Materials & special features

• Grade: WSM20S (Tiger·tec Silver)
• Chipbreaker: FM4
• Series: Tiger-tec Silver
• Applications: ISO M and S (rostfreie Stähle, superalloys/titanium)
• Execution: T
• Base material codes: S / M

FAQ

Which materials are recommended for this insert?
The CPMT050204-FM4 WSM20S insert is intended for ISO group M (rostfreie Stähle) and ISO group S (heat‑resistant superalloys and titanium), where its coating and grade resist high temperatures and adhesive wear.

What benefits does the Tiger·tec Silver treatment provide?
Tiger·tec Silver on the WSM20S grade increases wear resistance and thermal stability, improving edge life and maintaining cutting performance under demanding conditions.

How does the FM4 chipbreaker affect machining?
The FM4 chipbreaker on this insert promotes consistent chip formation and evacuation, reducing the risk of built‑up edge and supporting stable surface finish and dimensional control.

What does the rhombus 80° geometry mean for setup choices?
Rhombus 80° geometry offers versatile entry angles for indexing in common toolholders, enabling secure engagement for both turning and bore‑enlargement operations while balancing cutting forces.

Is this insert suited to interrupted cuts and entry operations?
Yes, the combination of the 11° relief, 0.4 mm corner radius and the FM4 chipbreaker provides robustness for interrupted cuts and secure entry, lowering the probability of edge chipping.

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

Protected trademarks and trade names are the property of their respective owners. Brand names and registered product names are cited solely for explanatory purposes. There is no affiliation between our company and the mentioned brands. The offered article is an original, factory‑new product of the manufacturer, Walter Tools.