WCMT040204-FM4 WSM20S T Wendeplatten - Walter Tools

Take advantage of the Tiger·tec Silver coating and the WSM20S grade for secure chip formation and extended tool life; the FM4 chipbreaker plus trigon geometry deliver consistent surface quality and predictable machining of stainless steels and superalloys. Order the insert directly via Metav Werkzeuge or consult our technical team for cutting data and application advice.

WCMT040204-FM4 WSM20S drilling/boring and turning insert – Walter Tools, Tiger·tec Silver, FM4 chipbreaker

WCMT040204-FM4 WSM20S is an indexable insert designed for drilling/boring and turning applications, optimised for machining stainless steels and heat‑resistant superalloys.

• Tiger·tec Silver coated carbide for high durability
• Optimised FM4 chipbreaker for secure chip control
• Trigon 80° geometry with 0.4 mm corner radius
• Designed for stainless steels and superalloys

Higher process reliability when machining challenging alloys

The WSM20S grade within the Tiger·tec Silver family is a coated carbide solution developed for materials that demand thermal and edge stability. For workpieces in stainless steels and heat‑resistant superalloys, the combination of coating chemistry and substrate hardness supports stable chip formation and reduces the risk of built‑up edge. This results in more consistent component quality and fewer unscheduled tool changes, improving throughput on series and batch production.

Geometry and chip control that cut downtime

The insert’s FM4 chipbreaker and Trigon 80° form translate into reliable chip evacuation and even cutting forces during interrupted cuts. The 0.4 mm corner radius together with a 7° clearance produces a balanced compromise between edge strength and surface finish, lowering the incidence of edge chipping and enabling longer tool life. These geometry choices reduce vibration sensitivity and help maintain dimensional stability across multiple workpieces, supporting predictable machining parameters.

Practical benefits for workshop integration and tool management

As a standard indexable insert, the part fits established toolholders and is easy to handle in production environments. The design reduces set‑up time and simplifies inventory: wearing an insert can be replaced without re‑tooling the holder, preserving toolholder accuracy. The grade and coating combination also supports higher cutting speeds where advisable, yielding better productivity without sacrificing surface integrity. Application notes and cutting data are available to match the insert to turning, boring or drilling cycles.

Contact Metav Werkzeuge for tailored cutting data, availability of WCMT040204-FM4 WSM20S inserts from Walter Tools and application recommendations for stainless steels and superalloys

Technical data

• Article number: WCMT040204-FM4-WSM20S-WALTER
• Designation: WCMT040204-FM4 WSM20S
• Manufacturer: Walter Tools
• Series: Tiger·tec Silver

Core data

• Clearance angle: 7°
• Corner radius: 0.4 mm
• Insert form: Trigon 80°
• Size code: 04
• Thickness code: 02
• Tolerance class: M

Special features

• Coating/technology: Tiger·tec Silver
• Grade: WSM20S (coated carbide)
• Chipbreaker: FM4
• Suitable for: stainless steels (M), heat‑resistant superalloys and titanium (S)
• Application: drilling/boring and turning insert

FAQ

Is this insert suitable for machining stainless steel?
The WCMT040204-FM4 WSM20S insert is specifically designed for stainless steels (ISO group M); the Tiger·tec Silver coating and WSM20S grade promote secure chip formation and thermal stability when machining these materials.

How does the FM4 chipbreaker affect performance?
The FM4 chipbreaker provides controlled chip segmentation and evacuation, improving surface finish and reducing the likelihood of chip entanglement in turning and boring operations with demanding alloys.

What advantages does the trigon 80° form provide?
The Trigon 80° geometry combines good edge strength with versatile cutting angles, making the insert suitable for a range of turning and boring tasks where robust corners and reliable cutting orientation are required.

Can this insert handle superalloys and titanium?
Yes; the WSM20S grade is intended for both ISO group S materials (heat‑resistant superalloys and titanium) and ISO group M, offering wear resistance and edge stability under high thermal loads.

Does the insert fit standard toolholders?
The WCMT040204-FM4 geometry conforms to common indexable insert standards and is compatible with toolholders designed for Trigon 80° inserts in the corresponding size code.

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

Protected trademarks and trade names are the property of their respective owners and are used for explanatory purposes only. There is no affiliation between our company and the mentioned brands. The offered item is original factory‑new merchandise of the manufacturer Walter Tools.