WCMT040204-RM4 WSM30S RM4 Wendeplatten - Walter Tools

Take advantage of the combination of Tiger‑tec Silver coating, a WSM30S grade for demanding materials and a Trigon 80° geometry with RM4 chipbreaker for stable chip control; order the insert directly via Metav Werkzeuge or consult our technical advisers for selection support.

WCMT040204-RM4 WSM30S — Trigon 80° indexable insert for stainless steels and superalloys (Walter Tools)

The WCMT040204-RM4 WSM30S is an indexable turning and boring insert designed for productive machining of stainless steels and heat‑resistant superalloys, offering a coated carbide grade optimised for edge stability and secure chip formation.

• Tiger‑tec Silver coating for heat resistance
• WSM30S grade for stainless and superalloys
• Trigon 80° form for stable engagement
• RM4 chipbreaker for consistent chip control

High‑performance cutting for tough materials

The coated carbide composition of this insert, part of the Tiger‑tec Silver series, provides a balance of wear resistance and thermal stability that benefits machining of stainless steels and superalloys. With a pronounced trigon geometry, the insert offers an optimised cutting edge that reduces vibration and improves tool life. The combination of a 7° clearance and a 0.4 mm corner radius supports secure chip formation while maintaining acceptable surface finish; this is particularly useful when workpieces tend to work‑harden or generate high cutting temperatures. The result is consistent productivity and fewer tool changes during medium‑ to heavy‑duty turning operations.

Coating and grade: why they matter for process reliability

The WSM30S grade is a coated carbide formulated to retain edge strength under thermal load, which directly reduces the risk of built‑up edge on difficult alloys. The Tiger‑tec Silver coating enhances oxidation resistance and supports repeatable cutting performance across long runs. Using a chipbreaker such as RM4 moderates chip shape and evacuation, lowering the likelihood of surface damage and machine downtime. These technical characteristics translate into measurable process security: fewer reworks, improved surface consistency and extended indexable‑insert life in continuous production environments.

Practical setup and machining advice

For best results with this Trigon 80° insert, select a compatible toolholder that supports the WCMT format and set cutting parameters according to material group: moderate cutting speeds and higher feeds for stainless steels to avoid rubbing, and reduced depths of cut when tackling very heat‑resistant superalloys. The 7° clearance reduces flank contact, while the 0.4 mm corner radius balances edge strength and achievable finish. When integrating into CNC programmes, monitor temperatures and chip formation during first passes to confirm stability; the insert is optimised for predictable chip control and repeatable part quality.

For technical advice on selecting the correct Walter Tools Tiger‑tec Silver insert and to place an order through Metav Werkzeuge, contact our specialists at Metav Werkzeuge for delivery and application support.

Technical Data

• Article number: WCMT040204-RM4-WSM30S-WALTER
• Designation: WCMT040204-RM4 WSM30S
• Type: Bohr-/Aufbohrwendeschneidplatte / Drehwendeschneidplatte (indexable turning/boring insert)
• Manufacturer: Walter Tools
• Series: Tiger‑tec Silver
• Grade: WSM30S

Facts

• Clearance angle: 7°
• Corner radius: 0.4 mm
• Plate form: Trigon 80°
• Plate size: 04
• Plate thickness: 02
• Tolerance class: M
• Chipbreaker: RM4

Special features

• Coated carbide grade (Tiger‑tec Silver)
• Suitable for stainless steels (ISO M) and superalloys/titanium (ISO S)
• Designed for stable chip formation and edge durability
• Trigon geometry for secure tool engagement and vibration resistance

FAQ

What materials is this insert suitable for?
The WCMT040204-RM4 WSM30S insert is designed primarily for stainless steels (ISO M) and heat‑resistant superalloys/titanium (ISO S), benefiting from the Tiger‑tec Silver coating and WSM30S grade.

How does the RM4 chipbreaker affect machining?
The RM4 chipbreaker controls chip shape and evacuation to reduce surface defects and improve process stability when using the WCMT040204-RM4 WSM30S in turning and boring applications.

Which geometry ensures stable engagement with this insert?
The Trigon 80° form of the insert provides a broad seating and positive cutting engagement, contributing to vibration resistance and consistent cutting performance with the WCMT040204-RM4 WSM30S.

Manufacturer/Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany, info@walter-tools.com

The Walter AG (brand appearance: Walter Tools) with headquarters in Tübingen is among the world’s leading manufacturers of precision tools for metal machining and is part of the Swedish Sandvik Group. Protected trademarks and trade names are the property of their respective owners. Brand names and protected product designations are mentioned solely for explanatory purposes. There is no connection between our company and the named brands beyond distribution. The offered item is an original, factory‑new product of the manufacturer.