SNMG120408-MM5 WSM20S WSM20S Wendeplatten - Walter Tools

Take advantage of the combination of a Tiger‑tec Silver coated carbide grade and a robust square geometry for consistent performance when machining stainless steels and heat‑resistant alloys; order directly via Metav Werkzeuge or consult the technical team for application support.

SNMG120408-MM5 WSM20S – Indexable turning insert, Tiger‑tec Silver for stainless steels (Walter Tools)

The SNMG120408-MM5 WSM20S is a square, 90° indexable turning insert designed for heavy‑duty applications on stainless steels and heat‑resistant superalloys, providing a coated carbide solution for stable chip formation and extended edge life

• Tiger‑tec Silver coated carbide for longevity
• Optimised for stainless steels and superalloys
• Square 90° form with 0.8 mm corner radius
• Negative rake 0° for robust cutting edge

Consistent performance on demanding materials

The WSM20S grade, built on Tiger‑tec Silver coating technology, targets difficult‑to‑machine materials where heat generation and work‑hardening are common. The coated carbide layer improves thermal stability and wear resistance, which supports more reliable chip control and reduces the risk of built‑up edge. For production environments, this means fewer unplanned index changes and a more predictable service life under cyclic loads.

Geometry that prioritises edge strength and repeatability

A square 90° insert with a 0.8 mm corner radius and negative rake 0° creates a geometry that favours edge robustness and repeatable dimension control. The negative rake increases the effective edge support, making the insert particularly suitable for interrupted cuts and heavy feed conditions, while the moderate corner radius balances strength with the ability to maintain surface finish. This geometry reduces vibration sensitivity and helps ensure consistent component tolerances over longer tool life.

Process security and efficiency in series production

Selecting this insert supports enhanced process security through a stable cutting edge and controlled chip formation. The combination of grade and geometry helps maintain cutting‑edge integrity when machining stainless steels and heat‑resistant alloys, which are known for poor thermal conductivity and high tool loading. The result is higher productivity, reduced downtime for tool changes and more predictable maintenance planning—advantages that translate directly into lower unit costs in batch and continuous production.

Clear applicability and easy integration into tool systems

The insert is supplied in the SNMG format and features the MM5 chipbreaker, which is tuned for the intended material groups ISO group M (stainless steels) and ISO group S (heat‑resistant superalloys and titanium). This classification clarifies which workpiece materials are appropriate and helps with tool‑holder selection and machining strategy. As a Walter Tools product, the insert integrates into standard turning toolholders for SNMG‑style components and is suitable where stable edge life is required alongside predictable chip evacuation.

Contact Metav Werkzeuge for tailored application advice on Walter Tools Tiger‑tec Silver inserts and ensure the SNMG120408‑MM5 WSM20S is matched to the right holder and cutting data for optimal results; eMail: info@metav-werkzeuge.com – Tel: +49 2822 7131930

Technical Data

• SKU: SNMG120408-MM5-WSM20S-WALTER
• Article designation: SNMG120408-MM5
• Product type: Indexable turning insert (drehwendeschneidplatte)
• Grade / sort: WSM20S
• Series: Tiger‑tec Silver
• Brand: Walter Tools
• Execution: G
• Tolerance class: M

Facts

• Size: 12
• Thickness: 04
• Corner radius: 0.8 mm
• Free angle (rake): 0° (negative)

Special features

• Chipbreaker: MM5
• Shape: Square 90°
• Material compatibility: stainless steels, heat‑resistant superalloys (ISO groups M and S)
• Coating: Tiger‑tec Silver coated carbide
• Intended use: robust machining, secure chip formation, industrial turning applications

FAQ

What materials is this insert suitable for? The SNMG120408‑MM5 WSM20S is optimised for stainless steels (ISO group M) and heat‑resistant superalloys/titanium (ISO group S), offering thermal stability and controlled chip formation for these challenging materials.

How does the Tiger‑tec Silver coating benefit machining? The Tiger‑tec Silver coating on the WSM20S grade increases wear resistance and thermal stability, helping to maintain a stable cutting edge and improve productivity under elevated temperatures typical when machining stainless steels and superalloys.

What effect does the 0.8 mm corner radius have on results? A 0.8 mm corner radius provides a compromise between edge strength and surface finish: it strengthens the cutting edge for heavy cuts while still permitting acceptable surface quality and dimensional repeatability.

Is the negative rake angle suitable for interrupted cuts? Yes, the negative rake 0° increases edge support and robustness, which is advantageous for interrupted cuts and heavy feed conditions where shock loading can occur.

Which chipbreaker is supplied and what is its purpose? The insert comes with the MM5 chipbreaker, which is designed to control chip flow for the targeted material groups, reducing the likelihood of long, tangled chips and improving machining safety.

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